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Zhu Y, Shudo Y, He H, Kim JY, Elde S, Williams KM, Walsh SK, Koyano TK, Guenthart B, Woo YJ. Outcomes of Heart Transplantation Using a Temperature-controlled Hypothermic Storage System. Transplantation 2023; 107:1151-1157. [PMID: 36510359 DOI: 10.1097/tp.0000000000004416] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The SherpaPak Cardiac Transport System is a novel technology that provides stable, optimal hypothermic control during organ transport. The objectives of this study were to describe our experience using the SherpaPak system and to compare outcomes after heart transplantation after using SherpaPak versus the conventional static cold storage method (non-SherpaPak). METHODS From 2018 to June 2021, 62 SherpaPak and 186 non-SherpaPak patients underwent primary heart transplantation at Stanford University with follow-up through May 2022. The primary end point was all-cause mortality, and secondary end points were postoperative complications. Optimal variable ratio matching, cox proportional hazards regression model, and Kaplan-Meier survival analyses were performed. RESULTS Before matching, the SherpaPak versus non-SherpaPak patients were older and received organs with significantly longer total allograft ischemic time. After matching, SherpaPak patients required fewer units of blood product for perioperative transfusion compared with non-SherpaPak patients but otherwise had similar postoperative outcomes such as hospital length of stay, primary graft dysfunction, inotrope score, mechanical circulatory support use, cerebral vascular accident, myocardial infarction, respiratory failure, new renal failure requiring dialysis, postoperative bleeding or tamponade requiring reoperation, infection, and survival. CONCLUSIONS In conclusion, this is one of the first retrospective comparison studies that evaluated the outcomes of heart transplantation using organs preserved and transported via the SherpaPak system. Given the excellent outcomes, despite prolonged total allograft ischemic time, it may be reasonable to adopt the SherpaPak system to accept organs from a remote location to further expand the donor pool.
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Affiliation(s)
- Yuanjia Zhu
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford University, Stanford, CA
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2
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Williams KM, Wang H, Bajaj SS, Hironaka CE, Kasinpila P, O'Donnell CT, Sanchez M, Watkins AC, Lui NS, Backhus LM, Boyd J. Career Progression and Research Productivity of Women in Academic Cardiothoracic Surgery. Ann Thorac Surg 2023; 115:1043-1050. [PMID: 35643331 DOI: 10.1016/j.athoracsur.2022.04.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/19/2022] [Accepted: 04/25/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND The objective of this work was to delineate career progression and research productivity of women practicing cardiothoracic surgery in the academic setting. METHODS Cardiothoracic surgeons at the 79 accredited US cardiothoracic surgery training programs in 2020 were included in this cross-sectional analysis. Data regarding subspecialization, training, practice history, and publications were gathered from public sources including department websites, CTSNet, and Scopus. RESULTS A total of 1065 surgeons (51.3% cardiac, 32.1% thoracic, 16.6% congenital) were identified. Women accounted for 10.6% (113) of the population (7.9% of cardiac, 15.5% of thoracic, 9.6% of congenital surgeons). The median number of cardiothoracic surgeons per institution was 12 (interquartile range [IQR], 10-17), with a median of 1 woman (IQR, 0-2). Fifteen of 79 programs (19%) had no women. Among women faculty 5.3% were clinical instructors, 51.3% were assistant professors, 23.0% were associate professors, 16.8% were full professors, and 3.5% had unspecified titles (vs 2.0%, 32.9%, 23.0%, 37.5%, and 4.6% among men, respectively; P < .001). Women and men authored a comparable number of first-author (0.4 [IQR, 0.0-1.3] vs 0.5 [IQR, 0.0-1.1], P = .56) publications per year but fewer last-author (0.1 [IQR, 0.0-0.7] vs 0.4 [IQR, 0.0-1.3], P < .0001) and total publications per year (2.7 [IQR, 1.0-6.2] vs 3.7 [IQR, 1.3-7.8], P = .05) than men. The H-index was lower for women than for men overall (8.0 [IQR, 3.0-15.0] vs 15.0 [IQR, 7.0-28.0], P < .001) but was similar between men and women who had been practicing for 10 to 20 years. CONCLUSIONS Gender disparities persist in academic cardiothoracic surgery. Efforts should be made to support women in achieving senior roles and academic productivity.
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Affiliation(s)
- Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Simar S Bajaj
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Camille E Hironaka
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Patpilai Kasinpila
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | | | - Mark Sanchez
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Amelia C Watkins
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Natalie S Lui
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Leah M Backhus
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Jack Boyd
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California.
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Wang H, Williams KM, Elde S, Bulterys PL, Thakore AD, Lucian HJ, Farry JM, Mullis DM, Zhu Y, Paulsen MJ, Woo YJ. Trimmed central venous catheters do not increase endothelial injury in an ovine model. J Vasc Access 2023:11297298231153716. [PMID: 36765464 DOI: 10.1177/11297298231153716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
INTRODUCTION Central venous catheters (CVCs) are often trimmed during heart transplantation and pediatric cardiac surgery. However, the risk of endothelial injury caused by the cut tip of the CVC has not been evaluated. We hypothesized that there is no difference in the degree of endothelial injury associated with trimmed CVCs versus standard untrimmed CVCs. METHODS In four adult male sheep, the left external jugular vein was exposed in three segments, one designated for an untouched control group, one for the trimmed CVC group, and one for the untrimmed CVC group. Trimmed and untrimmed CVC tips were rotated circumferentially within their respective segments to abrade the lumen of the vein. The vein samples were explanted, and two representative sections from each sample were analyzed using hematoxylin and eosin (H&E) staining, as well as with immunohistochemistry against CD31, von Willebrand factor (vWF), endothelial nitric oxide synthase (eNOS), and caveolin. Higher immunohistochemical stain distributions and intensities are associated with normal health and function of the venous endothelium. Data are presented as counts with percentages or as means with standard error. RESULTS H&E staining revealed no evidence of endothelial injury in 6/8 (75%) samples from the untouched control group, and no injury in 4/8 (50%) samples from both the trimmed and untrimmed CVC groups (p = 0.504). In all remaining samples from each group, only mild endothelial injury was observed. Immunohistochemical analysis comparing trimmed CVCs versus untrimmed CVCs revealed no difference in the percentage of endothelial cells staining positive for CD31 (57.5% ± 7.2% vs 55.0% ± 9.2%, p = 0.982), vWF (73.8% ± 8.0% vs 62.5% ± 9.6%, p = 0.579), eNOS (66.3% ± 4.2% vs 63.8% ± 7.5%, p = 0.962), and caveolin (53.8% ± 5.0% vs 51.3% ± 4.4%, p = 0.922). There were no significant differences between the groups in the distributions of stain intensity for CD31, vWF, eNOS, and caveolin. CONCLUSION Trimmed CVCs do not increase endothelial injury compared to standard untrimmed CVCs.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Stefan Elde
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | | | - Akshara D Thakore
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Haley J Lucian
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Justin M Farry
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Danielle M Mullis
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Yuanjia Zhu
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Michael J Paulsen
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Y Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
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Washington GC, O'Donnell CT, Madhok J, Williams KM, Hill CC. Use of methylene blue to treat vasoplegia syndrome in cystic fibrosis patients undergoing lung transplantation: A case series. Ann Card Anaesth 2023; 26:36-41. [PMID: 36722586 PMCID: PMC9997460 DOI: 10.4103/aca.aca_276_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Background Several studies have demonstrated the utility of methylene blue (MB) to treat vasoplegic syndrome (VS), but some have cautioned against its routine use in lung transplantation with only two cases described in prominent literature. Cystic fibrosis patients commonly have chronic infections which predispose them to a systemic inflammatory syndrome-like vasoplegic response during lung transplantation. We present 13 cystic fibrosis patients who underwent lung transplantation and received MB for vasoplegic syndrome while on cardiopulmonary bypass, with or without inhaled pulmonary vasodilator therapy. Methods Single-center, retrospective, case series analysis of cystic fibrosis patients who underwent lung transplant and received MB for vasoplegia. We defined the primary outcome as 30-day mortality, and secondary outcomes as primary graft failure, 1-year mortality, postoperative complications, and hemodynamic response to MB. Results MB was associated with a significant increase in mean arterial pressure (MAP) (P < 0.001) in all patients, and 84.6% (11/13) of the patients had either a decrease or no change in vasopressor requirement. No patients developed acute primary graft dysfunction and there was 100% 30-day and 1-year survival. One patient required Extracorporeal membrane oxygenation (ECMO) for hypoxemia and 69% (9/13) of the patients had evidence of postoperative right ventricular dysfunction, but no patients required a right ventricular assist device. Conclusion This case series demonstrates the effectiveness of MB in treating vasoplegia in cystic fibrosis patients during lung transplantation, without evidence of primary graft dysfunction, 30-day or 1-year mortality. The safety of MB regarding hypoxemia and increased pulmonary vascular resistance requires further investigation.
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Affiliation(s)
- Gabriel C Washington
- Department of Cardiac Anesthesia, Stanford University School of Medicine, Stanford, CA, USA
| | - Christian T O'Donnell
- Department of Cardiac Anesthesia, Stanford University School of Medicine, Stanford, CA, USA
| | - Jai Madhok
- Department of Cardiac Anesthesia, Stanford University School of Medicine, Stanford, CA, USA
| | - Kiah M Williams
- Department of Cardiac Anesthesia, Stanford University School of Medicine, Stanford, CA, USA
| | - Charles C Hill
- Department of Cardiac Anesthesia, Stanford University School of Medicine, Stanford, CA, USA
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Williams KM, Woo YJ. A newer era of heart-lung transplantation? Eur J Cardiothorac Surg 2022; 63:6988032. [PMID: 36645242 DOI: 10.1093/ejcts/ezad011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 01/06/2023] [Indexed: 01/17/2023]
Affiliation(s)
- Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Y Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
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Bajaj SS, Wang H, Williams KM, Heiler JC, Pickering JM, Manjunatha K, O’Donnell CT, Sanchez M, Boyd JH. Impact of PhD Degree Versus Non-PhD Research Fellowship on Future Research Productivity Among Academic Cardiothoracic Surgeons. World J Surg 2022; 46:2526-2535. [DOI: 10.1007/s00268-022-06661-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2022] [Indexed: 11/24/2022]
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Wang H, Bajaj SS, Manjunatha K, Yu MM, Obafemi OO, Williams KM, Boyd JH. Diminishing Basic Science Research Experience Among United States Cardiothoracic Surgery Trainees. J Surg Res 2022; 279:312-322. [PMID: 35809356 DOI: 10.1016/j.jss.2022.06.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 06/10/2022] [Accepted: 06/14/2022] [Indexed: 12/20/2022]
Abstract
INTRODUCTION There is growing concern regarding the attrition of surgeon-scientists. To understand the decline of basic science research (BSR), it is essential to examine trends in research conducted by trainees. We hypothesized that, over recent decades, cardiothoracic (CT) surgery trainees have published fewer BSR articles. MATERIALS AND METHODS CT surgeons at United States training institutions in 2020 who completed training in the past three decades, excluding international trainees, were analyzed (1991-2000: n = 148; 2001-2010: n = 228; 2011-2020: n = 247). Publication records were obtained from Scopus. Articles with medical subject heading terms involving molecular/cellular or animal research were classified as BSR using the National Institutes of Health iCite Translation module. Data were analyzed using Fisher's exact test or the Wilcoxon rank-sum test. RESULTS While the proportion of surgeons who published a first-author paper during training remained stable over the past two decades (178/228 [78.1%] versus 189/247 [76.5%], P = 0.7427), the proportion who published a first-author BSR paper decreased significantly (135/228 [59.2%] versus 96/247 [38.9%], P < 0.0001). Among surgeons who published a first-author paper in training, the total papers published by each trainee did not change over the past two decades (3.5 versus 3.3 first-author papers per 10 y of training, P = 0.8819). However, the number of BSR papers published during training decreased significantly (1.7 versus 0.8 first-author papers per 10 y of training, P < 0.0001). CONCLUSIONS CT surgery trainees are publishing fewer BSR papers. Additional efforts are needed to increase exposure of trainees to BSR and reaffirm that BSR is a valuable and worthwhile pursuit for academic surgeons.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Simar S Bajaj
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Keerthi Manjunatha
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Maggie M Yu
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | | | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Jack H Boyd
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California.
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Lamidi S, Williams KM, Hind D, Peckham-Cooper A, Miller AS, Smith AM, Saha A, Macutkiewicz C, Griffiths EA, Catena F, Coccolini F, Toogood G, Tierney GM, Boyd-Carson H, Sartelli M, Blencowe NS, Lockwood S, Coe PO, Lee MJ, Barreto SG, Drake T, Gachabayov M, Hill J, Ioannidis O, Lostoridis E, Mehraj A, Negoi I, Pata F, Steenkamp C, Ahmed S, Alin V, Al-Rashedy M, Atici SD, Bains L, Bandyopadhyay SK, Baraket O, Bates T, Beral D, Brown L, Buonomo L, Burke D, Caravaglios G, Ceresoli M, Chapman SJ, Cillara N, Clarke R, Colak E, Daniels S, Demetrashvili Z, Di Carlo I, Duff S, Dziakova J, Elliott JA, El Zalabany T, Engledow A, Ewnte B, Fraga GP, George R, Giuffrida M, Glasbey J, Isik A, Kechagias A, Kenington C, Kessel B, Khokha V, Kong V, Laloë P, Litvin A, Lostoridis E, Marinis A, Martínez-Pérez A, Menzies D, Mills R, Monzon BI, Morgan R, Neri V, Nita GE, Perra T, Perrone G, Porcu A, Poskus T, Premnath S, Sall I, Sarma DR, Slavchev M, Spence G, Tarasconi A, Tolonen M, Toro A, Venn ML, Vimalachandran D, Wheldon L, Zakaria AD. Defining core patient descriptors for perforated peptic ulcer research: international Delphi. Br J Surg 2022; 109:603-609. [PMID: 35467718 DOI: 10.1093/bjs/znac096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/09/2022] [Accepted: 03/08/2022] [Indexed: 10/13/2023]
Abstract
BACKGROUND Perforated peptic ulcer (PPU) remains a common condition globally with significant morbidity and mortality. Previous work has demonstrated variation in reporting of patient characteristics in PPU studies, making comparison of studies and outcomes difficult. The aim of this study was to standardize the reporting of patient characteristics, by creating a core descriptor set (CDS) of important descriptors that should be consistently reported in PPU research. METHODS Candidate descriptors were identified through systematic review and stakeholder proposals. An international Delphi exercise involving three survey rounds was undertaken to obtain consensus on key patient characteristics for future research. Participants rated items on a scale of 1-9 with respect to their importance. Items meeting a predetermined threshold (rated 7-9 by over 70 per cent of stakeholders) were included in the final set and ratified at a consensus meeting. Feedback was provided between rounds to allow refinement of ratings. RESULTS Some 116 clinicians were recruited from 29 countries. A total of 63 descriptors were longlisted from the literature, and 27 were proposed by stakeholders. After three survey rounds and a consensus meeting, 27 descriptors were included in the CDS. These covered demographic variables and co-morbidities, risk factors for PPU, presentation and pathway factors, need for organ support, biochemical parameters, prognostic tools, perforation details, and surgical history. CONCLUSION This study defines the core descriptive items for PPU research, which will allow more robust synthesis of studies.
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Williams KM, Backhus LM. Moving the Needle…Evidence of Durability of Impact. Ann Thorac Surg 2022; 113:1758-1759. [PMID: 33766520 DOI: 10.1016/j.athoracsur.2021.01.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 11/01/2022]
Affiliation(s)
- Kiah M Williams
- Stanford University School of Medicine, Stanford, California
| | - Leah M Backhus
- Department of Cardiothoracic Surgery, Stanford University, 300 Pasteur Dr, Stanford, CA 94304.
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10
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Williams KM, Woo YJ. Invited commentary: the choice between mechanical versus biologic mitral valves is becoming clear, what next? Eur J Cardiothorac Surg 2022; 62:6555492. [PMID: 35349666 DOI: 10.1093/ejcts/ezac198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Indexed: 11/15/2022] Open
Affiliation(s)
- Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Y Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
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Wang H, Bajaj SS, Heiler JC, Krishnan A, Williams KM, Woo YJ, Boyd JH. Quantitative goals for research output and scholarly impact to enhance basic science R01 grant renewal for cardiothoracic surgeons. JTCVS Open 2022; 9:162-175. [PMID: 36003453 PMCID: PMC9390269 DOI: 10.1016/j.xjon.2021.10.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 10/27/2021] [Indexed: 11/17/2022]
Affiliation(s)
| | | | | | | | | | | | - Jack H. Boyd
- Address for reprints: Jack H. Boyd, MD, Department of Cardiothoracic Surgery, Falk Cardiovascular Research Building, CV-229, 300 Pasteur Dr, Stanford, CA 94305
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12
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Patel DC, Wang H, Bajaj SS, Williams KM, Pickering JM, Heiler JC, Manjunatha K, O'Donnell CT, Sanchez M, Boyd JH, Backhus LM. The Academic Impact of Advanced Clinical Fellowship Training among General Thoracic Surgeons. J Surg Educ 2022; 79:417-425. [PMID: 34674980 DOI: 10.1016/j.jsurg.2021.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 07/28/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE Advanced clinical fellowship training has become a popular option for surgical trainees seeking to bolster their clinical training and expertise. However, the long-term academic impact of this additional training following a traditional thoracic surgery fellowship is unknown. This study aimed to delineate the impact of an advanced clinical fellowship on subsequent research productivity and advancement in academic career among general thoracic surgeons. METHODS Using an internally constructed database of active, academic general thoracic surgeons who are current faculty at accredited cardiothoracic surgery training programs within the United States, surgeons were dichotomized according to whether an advanced clinical fellowship was completed or not. Academic career metrics measured by research productivity, scholarly impact (H-index), funding by the National Institutes of Health, and academic rank were compared. RESULTS Among 285 general thoracic surgeons, 89 (31.2%) underwent an advanced fellowship, whereas 196 (68.8%) did not complete an advanced fellowship. The most commonly pursued advanced fellowship was minimally invasive thoracic surgery (32.0%). There were no differences between the two groups in terms of gender, international medical training, or postgraduate education. Those who completed an advanced clinical fellowship were less likely to have completed a dedicated research fellowship compared to those who had not completed any additional clinical training (58.4% vs. 74.0%, p = 0.0124). Surgeons completing an advanced clinical fellowship demonstrated similar cumulative first-author publications (p = 0.4572), last-author publications (p = 0.7855), H-index (p = 0.9651), National Institutes of Health funding (p = 0.7540), and years needed to advance to associate professor (p = 0.3410) or full rank professor (p = 0.1545) compared to surgeons who did not complete an advanced fellowship. These findings persisted in sub-analyses controlling for surgeons completing a dedicated research fellowship. CONCLUSIONS Academic general thoracic surgeons completing an advanced clinical fellowship demonstrate similar research output and ascend the academic ladder at a similar pace as those not pursuing additional training.
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Affiliation(s)
- Deven C Patel
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Simar S Bajaj
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Joshua M Pickering
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Joseph C Heiler
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Keerthi Manjunatha
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Christian T O'Donnell
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Mark Sanchez
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Jack H Boyd
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California
| | - Leah M Backhus
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, California; VA Palo Alto Health Care System, Palo Alto, California.
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Wang H, Wisneski A, Imbrie-Moore AM, Paulsen MJ, Wang Z, Xuan Y, Lopez Hernandez H, Hironaka CE, Lucian HJ, Shin HS, Anilkumar S, Thakore AD, Farry JM, Eskandari A, Williams KM, Grady F, Wu MA, Jung J, Stapleton LM, Steele AN, Zhu Y, Woo YJ. Natural cardiac regeneration conserves native biaxial left ventricular biomechanics after myocardial infarction in neonatal rats. J Mech Behav Biomed Mater 2022; 126:105074. [PMID: 35030471 PMCID: PMC8899021 DOI: 10.1016/j.jmbbm.2022.105074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 12/23/2021] [Accepted: 01/02/2022] [Indexed: 02/03/2023]
Abstract
After myocardial infarction (MI), adult mammals exhibit scar formation, adverse left ventricular (LV) remodeling, LV stiffening, and impaired contractility, ultimately resulting in heart failure. Neonatal mammals, however, are capable of natural heart regeneration after MI. We hypothesized that neonatal cardiac regeneration conserves native biaxial LV mechanics after MI. Wistar rat neonates (1 day old, n = 46) and adults (8-10 weeks old, n = 20) underwent sham surgery or permanent left anterior descending coronary artery ligation. At 6 weeks after neonatal MI, Masson's trichrome staining revealed negligible fibrosis. Echocardiography for the neonatal MI (n = 15) and sham rats (n = 14) revealed no differences in LV wall thickness or chamber diameter, and both groups had normal ejection fraction (72.7% vs 77.5%, respectively, p = 0.1946). Biaxial tensile testing revealed similar stress-strain curves along both the circumferential and longitudinal axes across a full range of physiologic stresses and strains. The circumferential modulus (267.9 kPa vs 274.2 kPa, p = 0.7847), longitudinal modulus (269.3 kPa vs 277.1 kPa, p = 0.7435), and maximum shear stress (3.30 kPa vs 3.95 kPa, p = 0.5418) did not differ significantly between the neonatal MI and sham groups, respectively. In contrast, transmural scars were observed at 4 weeks after adult MI. Adult MI hearts (n = 7) exhibited profound LV wall thinning (p < 0.0001), chamber dilation (p = 0.0246), and LV dysfunction (ejection fraction 45.4% vs 79.7%, p < 0.0001) compared to adult sham hearts (n = 7). Adult MI hearts were significantly stiffer than adult sham hearts in both the circumferential (321.5 kPa vs 180.0 kPa, p = 0.0111) and longitudinal axes (315.4 kPa vs 172.3 kPa, p = 0.0173), and also exhibited greater maximum shear stress (14.87 kPa vs 3.23 kPa, p = 0.0162). Our study is the first to show that native biaxial LV mechanics are conserved after neonatal heart regeneration following MI, thus adding biomechanical support for the therapeutic potential of cardiac regeneration in the treatment of ischemic heart disease.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA
| | - Andrew Wisneski
- Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Annabel M Imbrie-Moore
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Department of Mechanical Engineering, Stanford University, Stanford, CA, USA
| | - Michael J Paulsen
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Zhongjie Wang
- Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Yue Xuan
- Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | | | - Camille E Hironaka
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Haley J Lucian
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Hye Sook Shin
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Shreya Anilkumar
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Akshara D Thakore
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Justin M Farry
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Anahita Eskandari
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Frederick Grady
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Matthew A Wu
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Jinsuh Jung
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Lyndsay M Stapleton
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Amanda N Steele
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Yuanjia Zhu
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Y Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA; Department of Bioengineering, Stanford University, Stanford, CA, USA.
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14
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Wang H, Bajaj SS, Williams KM, Heiler JC, Pickering JM, Manjunatha K, O’Donnell CT, Sanchez M, Boyd JH. Early Engagement in Cardiothoracic Surgery Research Enhances Future Academic Productivity. Ann Thorac Surg 2021; 112:1664-1671. [DOI: 10.1016/j.athoracsur.2020.10.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 10/01/2020] [Accepted: 10/05/2020] [Indexed: 10/23/2022]
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Bajaj SS, Wang H, Williams KM, Pickering JM, Heiler JC, Manjunatha K, O’Donnell CT, Sanchez M, Boyd JH. New Attending Surgeons Hired by Their Training Institution Exhibit Greater Research Productivity. Ann Thorac Surg 2021; 112:1342-1348. [DOI: 10.1016/j.athoracsur.2020.09.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 08/25/2020] [Accepted: 09/23/2020] [Indexed: 01/12/2023]
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Wang H, Bajaj SS, Krishnan A, Heiler JC, Williams KM, Pickering JM, Manjunatha K, Sanchez M, O'Donnell CT, Boyd JH. Characterization of Cardiothoracic Surgeons Actively Leading Basic Science Research. J Surg Res 2021; 268:371-380. [PMID: 34399359 DOI: 10.1016/j.jss.2021.06.065] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/20/2021] [Accepted: 06/17/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND There is increasing concern regarding the attrition of surgeon-scientists in cardiothoracic (CT) surgery. However, the characteristics of CT surgeons who are actively leading basic science research (BSR) have not been examined. We hypothesized that early exposure to BSR during training and active grant funding are important factors that facilitate the pursuit of BSR among practicing CT surgeons. MATERIALS AND METHODS We created a database of 992 CT surgeons listed as faculty at accredited United States CT surgery teaching hospitals in 2018. Data regarding each surgeon's training/professional history, publication record, and National Institutes of Health funding were acquired from publicly available online sources. Surgeons who published at least one first- or last-author paper in 2017-2018 were considered to be active, lead researchers. RESULTS Of the 992 CT surgeons, 73 (7.4%) were actively leading BSR, and 599 (60.4%) were actively leading only non-BSR. Only 2 women were actively leading BSR. Surgeons actively leading BSR were more likely to have earned a PhD degree (20.5% versus 9.7%, P = 0.0049), and more likely to have published a first-author BSR paper during training (76.7% versus 40.9%, P< 0.0001). Surgeons actively leading BSR were also more likely to have an active National Institutes of Health grant (34.2% versus 5.8%, P< 0.0001), especially an R01 grant (21.9% versus 2.5%, P< 0.0001). CONCLUSIONS A small minority of CT surgeons at academic training hospitals are actively leading BSR. In order to facilitate the development of surgeon-scientists, additional support must be given to trainees and junior faculty, especially women, to enable early engagement in BSR.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Simar S Bajaj
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Aravind Krishnan
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Joseph C Heiler
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Joshua M Pickering
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Keerthi Manjunatha
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Mark Sanchez
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | | | - Jack H Boyd
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California.
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17
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Zhu Y, Lingala B, Baiocchi M, Toro Arana V, Williams KM, Shudo Y, Oyer PE, Woo YJ. The Stanford experience of heart transplantation over five decades. Eur Heart J 2021; 42:4934-4943. [PMID: 34333595 DOI: 10.1093/eurheartj/ehab416] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/03/2021] [Accepted: 06/18/2021] [Indexed: 11/12/2022] Open
Abstract
AIMS Since 1968, heart transplantation has become the definitive treatment for patients with end-stage heart failure. We aimed to summarize our experience in heart transplantation at Stanford University since the first transplantation performed over 50 years ago. METHODS AND RESULTS From 6 January 1968 to 30 November 2020, 2671 patients presented to Stanford University for heart transplantation, of which 1958 were adult heart transplantations. Descriptive analyses were performed for patients in 1968-95 (n = 639). Stabilized inverse probability weighting was applied to compare patients in 1996-2006 (n = 356) vs. 2007-19 (n = 515). Follow-up data were updated through 2020. The primary endpoint was all-cause mortality. Prior to weighting, recipients in 2007-19 vs. those in 1996-2006 were older and had heavier burden of chronic diseases. After the application of stabilized inverse probability weighting, the distance organ travelled increased from 84.2 ± 111.1 miles to 159.3 ± 169.9 miles from 1996-2006 to 2007-19. Total allograft ischaemia time also increased over time (199.6 ± 52.7 vs. 225.3 ± 50.0 min). Patients in 2007-19 showed superior survival than those in 1996-2006 with a median survival of 12.1 vs. 11.1 years. CONCLUSION In this half-century retrospective descriptive study from one of the largest heart transplant programmes in the USA, long-term survival after heart transplantation has improved over time despite increased recipient and donor age, worsening comorbidities, increased technical complexity, and prolonged total allograft ischaemia time. Further investigation is warranted to delineate factors associated with the excellent outcomes observed in this study.
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Affiliation(s)
- Yuanjia Zhu
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA 94305, USA
| | - Bharathi Lingala
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA 94305, USA
| | - Michael Baiocchi
- Department of Epidemiology and Population Health, Stanford University, 291 Campus Drive, Stanford, CA 94305, USA and
| | - Veronica Toro Arana
- School of Medicine, Stanford University, 291 Campus Drive, Stanford, CA 94305, USA
| | - Kiah M Williams
- School of Medicine, Stanford University, 291 Campus Drive, Stanford, CA 94305, USA
| | - Yasuhiro Shudo
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA 94305, USA
| | - Philip E Oyer
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA 94305, USA
| | - Y Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA 94305, USA
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18
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Bajaj SS, Wang H, Williams KM, Krishnan A, Heiler JC, Pickering JM, Manjunatha K, O'Donnell CT, Sanchez M, Boyd JH. Characterization of academic cardiothoracic surgeons who started as attendings in private or community practice. Surgery 2021; 171:348-353. [PMID: 34294448 DOI: 10.1016/j.surg.2021.06.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 06/02/2021] [Accepted: 06/06/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Surgeons are traditionally categorized as working either in academic or private/community practice, but some transition between the two environments. Here, we profile current academic cardiothoracic surgeons who began their attending careers in private or community practice. We hypothesized that research activity may distinguish cardiothoracic surgeons who started in non-academic versus academic practice. METHODS Publicly available data regarding professional history and research productivity were collected for 992 academic cardiothoracic surgeons on faculty at the 77 cardiothoracic surgery training programs in the United States in 2018. Data are presented as medians analyzed with the Mann-Whitney test or proportions analyzed with Fisher exact test or the χ2 test. RESULTS A total of 80 (8.1%) academic cardiothoracic surgery faculty started their careers in non-academic practice, and 912 (91.9%) started directly in academia. Those who started in non-academic practice spent a median 7.0 y in private/community practice and were more likely to be cardiac surgeons (68.8% vs 51.6%, P = .0132). They were equally likely to pursue a protected research fellowship (56.3% vs 57.0%, P = .9067) and publish research during training (92.5% vs 91.1%, P = .8374), but they published fewer total papers by the end of cardiothoracic surgery fellowship (3.0 vs 7.0, P = .0001) and fewer papers per year as an academic attending (0.8 vs 2.9, P < .0001). Nevertheless, the majority of cardiothoracic surgery faculty who started in non-academic practice are currently active in research (68.8%), and 2 such surgeons received National Institutes of Health R01 funding. CONCLUSION Transitioning from non-academic to academic practice is an uncommon but feasible pathway for interested cardiothoracic surgeons.
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Affiliation(s)
- Simar S Bajaj
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA. https://twitter.com/@SimarSBajaj
| | - Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA
| | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA. https://twitter.com/@KiahMW
| | - Aravind Krishnan
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA. https://twitter.com/@arav_krishnan
| | - Joseph C Heiler
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA. https://twitter.com/@JoeHeiler
| | | | | | | | - Mark Sanchez
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA
| | - Jack H Boyd
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA.
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Williams KM, Hironaka CE, Wang H, Bajaj SS, O’Donnell CT, Sanchez M, Boyd J, Kane L, Backhus L. Women in Thoracic Surgery Scholarship: Impact on Career Path and Interest in Cardiothoracic Surgery. Ann Thorac Surg 2021; 112:302-307. [DOI: 10.1016/j.athoracsur.2020.07.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 06/08/2020] [Accepted: 07/10/2020] [Indexed: 10/23/2022]
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Abstract
The 331 million people of the United States are served by a complex and expensive healthcare system that accounts for nearly 18% of the country’s gross domestic product. Over 90% of patients are insured by private or government-funded plans, but despite high coverage and unusually high healthcare spending, vast disparities exist within the United States population based on demographics in terms of diagnosis, treatment, and outcomes of disease. Thoracic surgeons in the United States are trained to treat patients with diseases of the chest in the operative and perioperative settings, and can accomplish this training through multiple highly competitive pathways. Thoracic surgeons perform an average of 135 operations each per year which address diseases of the lungs, trachea, esophagus, chest wall, mediastinum, and diaphragm. Video assisted thoracoscopic surgeries are the most commonly performed procedures, which are primarily completed to treat lung cancer. Lung cancer is the deadliest and second most prevalent malignancy in the United States, with over 200,000 new cases expected this year. In addition to encouragement of smoking cessation and more attention to air pollutants, increased access to lung cancer screening has significantly expedited diagnosis and reduced mortality from lung cancer in the last several years. Thoracic surgeons in the United States are tasked with treating common yet highly morbid diseases of the chest in a patient population that is diverse in terms of race, socioeconomic status, and healthcare insurance coverage. As the population ages and a shortage of thoracic surgeons looms, the importance of early diagnosis, skillful surgical management, and attention to the disparities that exist in our system cannot be overstated.
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Affiliation(s)
- Catherine T Byrd
- Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Kiah M Williams
- Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Leah M Backhus
- Division of Thoracic Surgery, Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
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21
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Bajaj SS, Wang H, Williams KM, Pickering JM, Heiler JC, Manjunatha K, O'Donnell CT, Sanchez M, Boyd JH. National Institutes of Health R01 Grant Funding Is Associated With Enhanced Research Productivity and Career Advancement Among Academic Cardiothoracic Surgeons. Semin Thorac Cardiovasc Surg 2020; 33:1047-1056. [PMID: 33359763 DOI: 10.1053/j.semtcvs.2020.12.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 12/10/2020] [Indexed: 11/11/2022]
Abstract
National Institutes of Health (NIH) funding has declined among cardiothoracic surgeons. R01 grants are a well-known mechanism to support high-impact research, and we sought to clarify the association between NIH funding and academic achievement. We hypothesized that cardiothoracic surgeons who acquired R01 funding exhibit greater research output and faster career advancement. All cardiothoracic surgeons (n = 992) working at accredited United States cardiothoracic surgery training hospitals in 2018 were included. Institutional webpages, Scopus, and Grantome were utilized to collect publicly-available data regarding each surgeon's training and career history, research publications, and NIH funding. Seventy-eight (7.9%) surgeons obtained R01 funding as a principal investigator while 914 (92.1%) did not. R01-funded surgeons started their attending careers earlier (1998 vs 2005, P < 0.0001) and were more likely to have pursued dedicated research training (P < 0.0001). R01-funded surgeons authored 5.3 publications/year before their first R01 grant, 9.3 during the grant period, and 8.6 after the grant expired, all of which were greater than the publication rate of non-R01-funded surgeons at comparable career timepoints (2.0-3.0 publications/year, P < 0.0001). Among time-matched surgeons who completed medical school in 1998 or earlier (n = 73 R01-funded vs n = 602 non-funded), R01-funded surgeons have published more total publications (178.0 vs 56.5 papers, P < 0.0001) and exhibit a greater H-index (41.0 vs 19.0, P < 0.0001). These R01-funded surgeons have also advanced to higher academic ranks (P < 0.0001) and are more likely to be chiefs of their departments or divisions (42.5% vs 25.7%, P = 0.0035). Cardiothoracic surgeons who obtain R01 funding exhibit greater research productivity and faster career advancement.
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Affiliation(s)
- Simar S Bajaj
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Joshua M Pickering
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Joseph C Heiler
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Keerthi Manjunatha
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | | | - Mark Sanchez
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Jack H Boyd
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California.
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Williams KM, Wang H, Paulsen MJ, Thakore AD, Rieck M, Lucian HJ, Grady F, Hironaka CE, Chien AJ, Farry JM, Shin HS, Jaatinen KJ, Eskandari A, Stapleton LM, Steele AN, Cohen JE, Woo YJ. Safety of photosynthetic Synechococcus elongatus for in vivo cyanobacteria-mammalian symbiotic therapeutics. Microb Biotechnol 2020; 13:1780-1792. [PMID: 32476224 PMCID: PMC7533327 DOI: 10.1111/1751-7915.13596] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 03/10/2020] [Accepted: 04/30/2020] [Indexed: 12/12/2022] Open
Abstract
The cyanobacterium Synechococcus elongatus (SE) has been shown to rescue ischaemic heart muscle after myocardial infarction by photosynthetic oxygen production. Here, we investigated SE toxicity and hypothesized that systemic SE exposure does not elicit a significant immune response in rats. Wistar rats intravenously received SE (n = 12), sterile saline (n = 12) or E. coli lipopolysaccharide (LPS, n = 4), and a subset (8 SE, 8 saline) received a repeat injection 4 weeks later. At baseline, 4 h, 24 h, 48 h, 8 days and 4 weeks after injection, clinical assessments, blood cultures, blood counts, lymphocyte phenotypes, liver function tests, proinflammatory cytokines and immunoglobulins were assessed. Across all metrics, SE rats responded comparably to saline controls, displaying no clinically significant immune response. As expected, LPS rats exhibited severe immunological responses. Systemic SE administration does not induce sepsis or toxicity in rats, thereby supporting the safety of cyanobacteria-mammalian symbiotic therapeutics using this organism.
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Affiliation(s)
- Kiah M. Williams
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Hanjay Wang
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Michael J. Paulsen
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Akshara D. Thakore
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Mary Rieck
- Beckman Center for Molecular and Genetic MedicineStanford UniversityStanfordCAUSA
| | - Haley J. Lucian
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Frederick Grady
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Camille E. Hironaka
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Athena J. Chien
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Justin M. Farry
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Hye Sook Shin
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Kevin J. Jaatinen
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Anahita Eskandari
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Lyndsay M. Stapleton
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
- Department of BioengineeringStanford UniversityStanfordCAUSA
| | - Amanda N. Steele
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
- Department of BioengineeringStanford UniversityStanfordCAUSA
| | - Jeffrey E. Cohen
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
| | - Y. Joseph Woo
- Department of Cardiothoracic SurgeryStanford University300 Pasteur Drive, Falk Cardiovascular Research BuildingStanfordCA94305USA
- Department of BioengineeringStanford UniversityStanfordCAUSA
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23
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Wang H, Bajaj SS, Williams KM, Pickering JM, Heiler JC, Manjunatha K, O'Donnell CT, Sanchez M, Boyd JH. Impact of advanced clinical fellowship training on future research productivity and career advancement in adult cardiac surgery. Surgery 2020; 169:1221-1227. [PMID: 32747139 DOI: 10.1016/j.surg.2020.06.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 05/29/2020] [Accepted: 06/15/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND Advanced clinical fellowships are important for training surgeons with a niche expertise. Whether this additional training impacts future academic achievement, however, remains unknown. Here, we investigated the impact of advanced fellowship training on research productivity and career advancement among active, academic cardiac surgeons. We hypothesized that advanced fellowships do not significantly boost future academic achievement. METHODS Using online sources (eg, department webpages, CTSNet, Scopus, Grantome), we studied adult cardiac surgeons who are current faculty at accredited United States cardiothoracic surgery training programs, and who have practiced only at United States academic centers since 1986 (n = 227). Publicly available data regarding career advancement, research productivity, and grant funding were collected. Data are expressed as counts or medians. RESULTS In our study, 78 (34.4%) surgeons completed an advanced clinical fellowship, and 149 (65.6%) did not. Surgeons who pursued an advanced fellowship spent more time focused on surgical training (P < .0001), and those who did not were more likely to have completed a dedicated research fellowship (P = .0482). Both groups exhibited similar cumulative total publications (P = .6862), H-index (P = .6232), frequency of National Institutes of Health grant funding (P = .8708), and time to achieve full professor rank (P = .7099). After stratification by current academic rank, or by whether surgeons pursued a dedicated research fellowship, completion of an advanced clinical fellowship was not associated with increased research productivity or accelerated career advancement. CONCLUSION Academic adult cardiac surgeons who pursue advanced clinical fellowships exhibit similar research productivity and similar career advancement as those who do not pursue additional clinical training.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA
| | - Simar S Bajaj
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA
| | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA
| | | | - Joseph C Heiler
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA
| | | | | | - Mark Sanchez
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA
| | - Jack H Boyd
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA.
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Steele AN, Paulsen MJ, Wang H, Stapleton LM, Lucian HJ, Eskandari A, Hironaka CE, Farry JM, Baker SW, Thakore AD, Jaatinen KJ, Tada Y, Hollander MJ, Williams KM, Seymour AJ, Totherow KP, Yu AC, Cochran JR, Appel EA, Woo YJ. Multi-phase catheter-injectable hydrogel enables dual-stage protein-engineered cytokine release to mitigate adverse left ventricular remodeling following myocardial infarction in a small animal model and a large animal model. Cytokine 2020; 127:154974. [DOI: 10.1016/j.cyto.2019.154974] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/18/2019] [Accepted: 12/26/2019] [Indexed: 10/25/2022]
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Stapleton LM, Steele AN, Wang H, Lopez Hernandez H, Yu AC, Paulsen MJ, Smith AAA, Roth GA, Thakore AD, Lucian HJ, Totherow KP, Baker SW, Tada Y, Farry JM, Eskandari A, Hironaka CE, Jaatinen KJ, Williams KM, Bergamasco H, Marschel C, Chadwick B, Grady F, Ma M, Appel EA, Woo YJ. Use of a supramolecular polymeric hydrogel as an effective post-operative pericardial adhesion barrier. Nat Biomed Eng 2019; 3:611-620. [DOI: 10.1038/s41551-019-0442-z] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 07/08/2019] [Indexed: 01/24/2023]
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26
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Wang H, Wisneski A, Paulsen MJ, Imbrie-Moore A, Wang Z, Xuan Y, Hernandez HL, Lucian HJ, Eskandari A, Thakore AD, Farry JM, Hironaka CE, von Bornstaedt D, Steele AN, Stapleton LM, Williams KM, Wu MA, MacArthur JW, Woo YJ. Bioengineered analog of stromal cell-derived factor 1α preserves the biaxial mechanical properties of native myocardium after infarction. J Mech Behav Biomed Mater 2019; 96:165-171. [PMID: 31035067 DOI: 10.1016/j.jmbbm.2019.04.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/04/2019] [Accepted: 04/11/2019] [Indexed: 01/08/2023]
Abstract
Adverse remodeling of the left ventricle (LV) after myocardial infarction (MI) results in abnormal tissue biomechanics and impaired cardiac function, often leading to heart failure. We hypothesized that intramyocardial delivery of engineered stromal cell-derived factor 1α analog (ESA), our previously-developed supra-efficient pro-angiogenic chemokine, preserves biaxial LV mechanical properties after MI. Male Wistar rats (n = 45) underwent sham surgery (n = 15) or permanent left anterior descending coronary artery ligation. Rats sustaining MI were randomized for intramyocardial injections of either saline (100 μL, n = 15) or ESA (6 μg/kg, n = 15), delivered at four standardized borderzone sites. After 4 weeks, echocardiography was performed, and the hearts were explanted. Tensile testing of the anterolateral LV wall was performed using a displacement-controlled biaxial load frame, and modulus was determined after constitutive modeling. At 4 weeks post-MI, compared to saline controls, ESA-treated hearts had greater wall thickness (1.68 ± 0.05 mm vs 1.42 ± 0.08 mm, p = 0.008), smaller end-diastolic LV internal dimension (6.88 ± 0.29 mm vs 7.69 ± 0.22 mm, p = 0.044), and improved ejection fraction (62.8 ± 3.0% vs 49.4 ± 4.5%, p = 0.014). Histologic analysis revealed significantly reduced infarct size for ESA-treated hearts compared to saline controls (29.4 ± 2.9% vs 41.6 ± 3.1%, p = 0.021). Infarcted hearts treated with ESA exhibited decreased modulus compared to those treated with saline in both the circumferential (211.5 ± 6.9 kPa vs 264.3 ± 12.5 kPa, p = 0.001) and longitudinal axes (194.5 ± 6.5 kPa vs 258.1 ± 14.4 kPa, p < 0.001). In both principal directions, ESA-treated infarcted hearts possessed similar tissue compliance as sham non-infarcted hearts. Overall, intramyocardial ESA therapy improves post-MI ventricular remodeling and function, reduces infarct size, and preserves native LV biaxial mechanical properties.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Andrew Wisneski
- Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Michael J Paulsen
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Annabel Imbrie-Moore
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Department of Mechanical Engineering, Stanford University, Stanford, CA, USA
| | - Zhongjie Wang
- Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Yue Xuan
- Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | | | - Haley J Lucian
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Anahita Eskandari
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Akshara D Thakore
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Justin M Farry
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Camille E Hironaka
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | | | - Amanda N Steele
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Lyndsay M Stapleton
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Matthew A Wu
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - John W MacArthur
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA
| | - Y Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA; Department of Bioengineering, Stanford University, Stanford, CA, USA.
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Kumar SS, McManus H, Radovich T, Greenfield JR, Viardot A, Williams KM, Cronin P, Day RO. Interrogation of a longitudinal, national pharmacy claims dataset to explore factors that predict the need for add-on therapy in older and socioeconomically disadvantaged Australians with type 2 diabetes mellitus patients (T2DM). Eur J Clin Pharmacol 2018; 74:1327-1332. [PMID: 29938343 DOI: 10.1007/s00228-018-2506-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 06/14/2018] [Indexed: 11/25/2022]
Abstract
PURPOSE The management of type 2 diabetes mellitus (T2DM) is complex. The aim of this work is to explore factors that predict the need for add-on therapy in patients with T2DM in the community. METHODS We accessed longitudinal, pharmacy payment claim records from the national Pharmaceutical Benefits Scheme (PBS) (Subsidises costs of medicines: government pays difference between patient co-payments, lower in concessional patients, and additional cost of drug.) for the period January 2006 to September 2014 (EREC/MI3127) from a 10% random sample of the Australian population validated to be representative of the population by the Australian Bureau of Statistics (ABS). Likely, T2DM patients were identified as those having been dispensed a single anti-hyperglycaemic drug (monotherapy). The time taken and possible factors that might lead to the addition of a second therapy were examined. An examination was made of trends in the co-prescription of either antihypertensive or anti-hyperlipidaemic agents in relation to the time (± 3 years) of initiating an anti-hyperglycaemic agent. RESULTS Most (83%) presumed T2DM patients were initiated with metformin. The average time until the second agent was added was 4.8 years (95% CI 4.7-4.9). Satisfactory adherence, age, male gender, initiating therapy after 2012 and initiating with a sulphonylurea drug all were significant risks for add-on therapy. There was no overall trend in the initiation of antihypertensive and/or anti-hyperlipidaemic agents with respect to the time of anti-hyperglycaemic initiation. CONCLUSION The usefulness of a longitudinal dataset of pharmacy-claim records is demonstrated. Over half of all older and socioeconmically disadvantaged T2DM patients captured in this longitudinal claims database will be prescribed a second anti-hyperglycaemic agent within 5 years of their first drug therapy. Several factors can predict the risk of prescription of add-on therapy, and these should be considered when prescribing medications to treat T2DM.
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Affiliation(s)
- S S Kumar
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, NSW, Australia
- School of Medical Sciences, UNSW Australia, Sydney, NSW, Australia
| | - H McManus
- Prospection Pty Ltd, Sydney, NSW, Australia
| | - T Radovich
- Prospection Pty Ltd, Sydney, NSW, Australia
| | - J R Greenfield
- Division of Diabetes and Metabolism, Garvan Institute, Sydney, NSW, Australia
- St Vincent's Clinical School, UNSW Australia, Sydney, NSW, Australia
| | - A Viardot
- Division of Diabetes and Metabolism, Garvan Institute, Sydney, NSW, Australia
- St Vincent's Clinical School, UNSW Australia, Sydney, NSW, Australia
| | - K M Williams
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, NSW, Australia
- School of Medical Sciences, UNSW Australia, Sydney, NSW, Australia
| | - P Cronin
- Prospection Pty Ltd, Sydney, NSW, Australia
| | - R O Day
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, NSW, Australia.
- School of Medical Sciences, UNSW Australia, Sydney, NSW, Australia.
- St Vincent's Clinical School, UNSW Australia, Sydney, NSW, Australia.
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28
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Dash N, Bahinipati S, Bhardwaj V, Trabelsi K, Adachi I, Aihara H, Al Said S, Asner DM, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bakich AM, Bansal V, Barberio E, Bhuyan B, Biswal J, Bobrov A, Bondar A, Bonvicini G, Bozek A, Bračko M, Breibeck F, Browder TE, Červenkov D, Chang MC, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi Y, Cinabro D, Di Carlo S, Doležal Z, Drásal Z, Dutta D, Eidelman S, Epifanov D, Farhat H, Fast JE, Ferber T, Fulsom BG, Gaur V, Gabyshev N, Garmash A, Gillard R, Goldenzweig P, Haba J, Hara T, Hayasaka K, Hayashii H, Hedges MT, Hou WS, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki Y, Jacobs WW, Jaegle I, Jeon HB, Jin Y, Joffe D, Joo KK, Julius T, Kahn J, Kaliyar AB, Karyan G, Katrenko P, Kawasaki T, Kiesling C, Kim DY, Kim HJ, Kim JB, Kim KT, Kim MJ, Kim SH, Kim YJ, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Krokovny P, Kuhr T, Kulasiri R, Kumar R, Kumita T, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Li CH, Li L, Li Y, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Mohanty S, Moon HK, Mori T, Mussa R, Nakano E, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Nayak M, Niiyama M, Nisar NK, Nishida S, Ogawa S, Okuno S, Ono H, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park CS, Park H, Paul S, Pedlar TK, Pesántez L, Pestotnik R, Piilonen LE, Prasanth K, Ritter M, Rostomyan A, Sahoo H, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schneider O, Schnell G, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Simon F, Sokolov A, Solovieva E, Starič M, Strube JF, Stypula J, Sumisawa K, Sumiyoshi T, Takizawa M, Tamponi U, Tanida K, Tenchini F, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Van Hulse C, Varner G, Vorobyev V, Vossen A, Waheed E, Wang CH, Wang MZ, Wang P, Watanabe M, Watanabe Y, Widmann E, Williams KM, Won E, Yamashita Y, Ye H, Yelton J, Yook Y, Yuan CZ, Yusa Y, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Zupanc A. Search for CP Violation and Measurement of the Branching Fraction in the Decay D^{0}→K_{S}^{0}K_{S}^{0}. Phys Rev Lett 2017; 119:171801. [PMID: 29219447 DOI: 10.1103/physrevlett.119.171801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Indexed: 06/07/2023]
Abstract
We report a study of the decay D^{0}→K_{S}^{0}K_{S}^{0} using 921 fb^{-1} of data collected at or near the ϒ(4S) and ϒ(5S) resonances with the Belle detector at the KEKB asymmetric energy e^{+}e^{-} collider. The measured time-integrated CP asymmetry is A_{CP}(D^{0}→K_{S}^{0}K_{S}^{0})=(-0.02±1.53±0.02±0.17)%, and the branching fraction is B(D^{0}→K_{S}^{0}K_{S}^{0})=(1.321±0.023±0.036±0.044)×10^{-4}, where the first uncertainty is statistical, the second is systematic, and the third is due to the normalization mode (D^{0}→K_{S}^{0}π^{0}). These results are significantly more precise than previous measurements available for this mode. The A_{CP} measurement is consistent with the standard model expectation.
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Affiliation(s)
- N Dash
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - S Bahinipati
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - V Bhardwaj
- Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306
| | - K Trabelsi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - S Al Said
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Aulchenko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Aushev
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - V Babu
- Tata Institute of Fundamental Research, Mumbai 400005
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - V Bansal
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - E Barberio
- School of Physics, University of Melbourne, Victoria 3010
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - J Biswal
- J. Stefan Institute, 1000 Ljubljana
| | - A Bobrov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Bondar
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - F Breibeck
- Institute of High Energy Physics, Vienna 1050
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - M-C Chang
- Department of Physics, Fu Jen Catholic University, Taipei 24205
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - S Di Carlo
- Wayne State University, Detroit, Michigan 48202
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - D Dutta
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Gaur
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - P Goldenzweig
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - J Haba
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Hara
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | | | | | - M T Hedges
- University of Hawaii, Honolulu, Hawaii 96822
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - A Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578
| | - R Itoh
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408
| | - I Jaegle
- University of Florida, Gainesville, Florida 32611
| | - H B Jeon
- Kyungpook National University, Daegu 702-701
| | - Y Jin
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D Joffe
- Kennesaw State University, Kennesaw, Georgia 30144
| | - K K Joo
- Chonnam National University, Kwangju 660-701
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - J Kahn
- Ludwig Maximilians University, 80539 Munich
| | - A B Kaliyar
- Indian Institute of Technology Madras, Chennai 600036
| | - G Karyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - P Katrenko
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | | | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - H J Kim
- Kyungpook National University, Daegu 702-701
| | - J B Kim
- Korea University, Seoul 136-713
| | - K T Kim
- Korea University, Seoul 136-713
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | | | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - R Kulasiri
- Kennesaw State University, Kennesaw, Georgia 30144
| | - R Kumar
- Punjab Agricultural University, Ludhiana 141004
| | - T Kumita
- Tokyo Metropolitan University, Tokyo 192-0397
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - I S Lee
- Hanyang University, Seoul 133-791
| | - C H Li
- School of Physics, University of Melbourne, Victoria 3010
| | - L Li
- University of Science and Technology of China, Hefei 230026
| | - Y Li
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - M Lubej
- J. Stefan Institute, 1000 Ljubljana
| | - T Luo
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - M Merola
- INFN-Sezione di Napoli, 80126 Napoli
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
- Utkal University, Bhubaneswar 751004
| | | | - T Mori
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - K J Nath
- Indian Institute of Technology Guwahati, Assam 781039
| | - Z Natkaniec
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Nayak
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Wayne State University, Detroit, Michigan 48202
| | | | - N K Nisar
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - S Okuno
- Kanagawa University, Yokohama 221-8686
| | - H Ono
- Nippon Dental University, Niigata 951-8580
- Niigata University, Niigata 950-2181
| | - P Pakhlov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - B Pal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - S Pardi
- INFN-Sezione di Napoli, 80126 Napoli
| | - C-S Park
- Yonsei University, Seoul 120-749
| | - H Park
- Kyungpook National University, Daegu 702-701
| | - S Paul
- Department of Physics, Technische Universität München, 85748 Garching
| | | | | | | | - L E Piilonen
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - K Prasanth
- Indian Institute of Technology Madras, Chennai 600036
| | - M Ritter
- Ludwig Maximilians University, 80539 Munich
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - H Sahoo
- University of Hawaii, Honolulu, Hawaii 96822
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- University of Cincinnati, Cincinnati, Ohio 45221
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sanuki
- Department of Physics, Tohoku University, Sendai 980-8578
| | - Y Sato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - A J Schwartz
- University of Cincinnati, Cincinnati, Ohio 45221
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - C P Shen
- Beihang University, Beijing 100191
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - E Solovieva
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - J F Strube
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - J Stypula
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - K Sumisawa
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - M Takizawa
- J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Theoretical Research Division, Nishina Center, RIKEN, Saitama 351-0198
- Showa Pharmaceutical University, Tokyo 194-8543
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, Naka 319-1195
| | - F Tenchini
- School of Physics, University of Melbourne, Victoria 3010
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - T Uglov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Vossen
- Indiana University, Bloomington, Indiana 47408
| | - E Waheed
- School of Physics, University of Melbourne, Victoria 3010
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | | | | | - E Widmann
- Stefan Meyer Institute for Subatomic Physics, Vienna 1090
| | - K M Williams
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | | | - H Ye
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - J Yelton
- University of Florida, Gainesville, Florida 32611
| | - Y Yook
- Yonsei University, Seoul 120-749
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Zhukova
- Moscow Physical Engineering Institute, Moscow 115409
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
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29
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Duong JK, Kroonen MYAM, Kumar SS, Heerspink HL, Kirkpatrick CM, Graham GG, Williams KM, Day RO. A dosing algorithm for metformin based on the relationships between exposure and renal clearance of metformin in patients with varying degrees of kidney function. Eur J Clin Pharmacol 2017; 73:981-990. [PMID: 28451709 DOI: 10.1007/s00228-017-2251-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 03/30/2017] [Indexed: 02/02/2023]
Abstract
PURPOSE The aims of this study were to investigate the relationship between metformin exposure, renal clearance (CLR), and apparent non-renal clearance of metformin (CLNR/F) in patients with varying degrees of kidney function and to develop dosing recommendations. METHODS Plasma and urine samples were collected from three studies consisting of patients with varying degrees of kidney function (creatinine clearance, CLCR; range, 14-112 mL/min). A population pharmacokinetic model was built (NONMEM) in which the oral availability (F) was fixed to 0.55 with an estimated inter-individual variability (IIV). Simulations were performed to estimate AUC0-τ, CLR, and CLNR/F. RESULTS The data (66 patients, 327 observations) were best described by a two-compartment model, and CLCR was a covariate for CLR. Mean CLR was 17 L/h (CV 22%) and mean CLNR/F was 1.6 L/h (69%).The median recovery of metformin in urine was 49% (range 19-75%) over a dosage interval. When CLR increased due to improved renal function, AUC0-τ decreased proportionally, while CLNR/F did not change with kidney function. Target doses (mg/day) of metformin can be reached using CLCR/3 × 100 to obtain median AUC0-12 of 18-26 mg/L/h for metformin IR and AUC0-24 of 38-51 mg/L/h for metformin XR, with Cmax < 5 mg/L. CONCLUSIONS The proposed dosing algorithm can be used to dose metformin in patients with various degrees of kidney function to maintain consistent drug exposure. However, there is still marked IIV and therapeutic drug monitoring of metformin plasma concentrations is recommended.
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Affiliation(s)
- Janna K Duong
- School of Medical Sciences, Medicine, University of New South Wales, Sydney, Australia. .,Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, Australia. .,Faculty of Pharmacy, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - M Y A M Kroonen
- Department of Pharmacy and Pharmacology, University of Groningen, Groningen, The Netherlands
| | - S S Kumar
- School of Medical Sciences, Medicine, University of New South Wales, Sydney, Australia.,Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, Australia
| | - H L Heerspink
- Department of Pharmacy and Pharmacology, University of Groningen, Groningen, The Netherlands
| | - C M Kirkpatrick
- Centre for Medicine Use and Safety, Monash University, Parkville, Australia
| | - G G Graham
- School of Medical Sciences, Medicine, University of New South Wales, Sydney, Australia.,Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, Australia
| | - K M Williams
- School of Medical Sciences, Medicine, University of New South Wales, Sydney, Australia.,Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, Australia
| | - R O Day
- School of Medical Sciences, Medicine, University of New South Wales, Sydney, Australia.,Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, Australia.,St Vincent's Clinical School, Medicine, University of New South Wales, Sydney, Australia
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30
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Wehle S, Niebuhr C, Yashchenko S, Adachi I, Aihara H, Al Said S, Asner DM, Aulchenko V, Aushev T, Ayad R, Aziz T, Babu V, Bakich AM, Bansal V, Barberio E, Bartel W, Behera P, Bhuyan B, Biswal J, Bobrov A, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chang P, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho K, Choi Y, Cinabro D, Dash N, Dingfelder J, Doležal Z, Drásal Z, Dutta D, Eidelman S, Epifanov D, Farhat H, Fast JE, Ferber T, Fulsom BG, Gaur V, Gabyshev N, Garmash A, Gillard R, Goldenzweig P, Golob B, Grzymkowska O, Guido E, Haba J, Hara T, Hayasaka K, Hayashii H, Hedges MT, Hou WS, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki Y, Jacobs WW, Jaegle I, Jeon HB, Jin Y, Joffe D, Joo KK, Julius T, Kaliyar AB, Kang KH, Karyan G, Katrenko P, Kawasaki T, Kichimi H, Kiesling C, Kim DY, Kim HJ, Kim JB, Kim KT, Kim MJ, Kim SH, Kinoshita K, Koch L, Kodyš P, Korpar S, Kotchetkov D, Križan P, Krokovny P, Kuhr T, Kulasiri R, Kumita T, Kuzmin A, Kwon YJ, Lange JS, Li CH, Li L, Li Y, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Miyabayashi K, Miyake H, Mizuk R, Mohanty GB, Mori T, Mussa R, Nakano E, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Nayak M, Nisar NK, Nishida S, Ogawa S, Ono H, Onuki Y, Pakhlova G, Pal B, Park CS, Park CW, Park H, Paul S, Pesántez L, Piilonen LE, Pulvermacher C, Rauch J, Ritter M, Rostomyan A, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schlüter T, Schneider O, Schnell G, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Seon O, Seong IS, Sevior ME, Shen CP, Shibata TA, Shiu JG, Shwartz B, Simon F, Sinha R, Solovieva E, Starič M, Strube JF, Sumisawa K, Sumiyoshi T, Takizawa M, Tamponi U, Tenchini F, Trabelsi K, Tsuboyama T, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Ushiroda Y, Usov Y, Vahsen SE, Van Hulse C, Varner G, Varvell KE, Vorobyev V, Vossen A, Waheed E, Wang CH, Wang MZ, Wang P, Watanabe M, Watanabe Y, Widmann E, Williams KM, Won E, Yamamoto H, Yamashita Y, Ye H, Yook Y, Yuan CZ, Yusa Y, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Ziegler M, Zupanc A. Lepton-Flavor-Dependent Angular Analysis of B→K^{*}ℓ^{+}ℓ^{-}. Phys Rev Lett 2017; 118:111801. [PMID: 28368653 DOI: 10.1103/physrevlett.118.111801] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Indexed: 06/07/2023]
Abstract
We present a measurement of angular observables and a test of lepton flavor universality in the B→K^{*}ℓ^{+}ℓ^{-} decay, where ℓ is either e or μ. The analysis is performed on a data sample corresponding to an integrated luminosity of 711 fb^{-1} containing 772×10^{6} BB[over ¯] pairs, collected at the ϒ(4S) resonance with the Belle detector at the asymmetric-energy e^{+}e^{-} collider KEKB. The result is consistent with standard model (SM) expectations, where the largest discrepancy from a SM prediction is observed in the muon modes with a local significance of 2.6σ.
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Affiliation(s)
- S Wehle
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - C Niebuhr
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | | | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - S Al Said
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Aulchenko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Aushev
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - T Aziz
- Tata Institute of Fundamental Research, Mumbai 400005
| | - V Babu
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - V Bansal
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - E Barberio
- School of Physics, University of Melbourne, Victoria 3010
| | - W Bartel
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - P Behera
- Indian Institute of Technology Madras, Chennai 600036
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - J Biswal
- J. Stefan Institute, 1000 Ljubljana
| | - A Bobrov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Bondar
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - P Chang
- Department of Physics, National Taiwan University, Taipei 10617
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - R Chistov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - N Dash
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | | | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - D Dutta
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - P Goldenzweig
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - O Grzymkowska
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - E Guido
- INFN-Sezione di Torino, 10125 Torino
| | - J Haba
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Hara
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | | | | | - M T Hedges
- University of Hawaii, Honolulu, Hawaii 96822
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - C-L Hsu
- School of Physics, University of Melbourne, Victoria 3010
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - G Inguglia
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - A Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578
| | - R Itoh
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408
| | - I Jaegle
- University of Florida, Gainesville, Florida 32611
| | - H B Jeon
- Kyungpook National University, Daegu 702-701
| | - Y Jin
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D Joffe
- Kennesaw State University, Kennesaw, Georgia 30144
| | - K K Joo
- Chonnam National University, Kwangju 660-701
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - A B Kaliyar
- Indian Institute of Technology Madras, Chennai 600036
| | - K H Kang
- Kyungpook National University, Daegu 702-701
| | - G Karyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - P Katrenko
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | | | - H Kichimi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - H J Kim
- Kyungpook National University, Daegu 702-701
| | - J B Kim
- Korea University, Seoul 136-713
| | - K T Kim
- Korea University, Seoul 136-713
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - L Koch
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | | | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - R Kulasiri
- Kennesaw State University, Kennesaw, Georgia 30144
| | - T Kumita
- Tokyo Metropolitan University, Tokyo 192-0397
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Li
- School of Physics, University of Melbourne, Victoria 3010
| | - L Li
- University of Science and Technology of China, Hefei 230026
| | - Y Li
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - M Lubej
- J. Stefan Institute, 1000 Ljubljana
| | - T Luo
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
| | - T Matsuda
- University of Miyazaki, Miyazaki 889-2192
| | | | - H Miyake
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - R Mizuk
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - T Mori
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - K J Nath
- Indian Institute of Technology Guwahati, Assam 781039
| | - Z Natkaniec
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Nayak
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Wayne State University, Detroit, Michigan 48202
| | - N K Nisar
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - H Ono
- Nippon Dental University, Niigata 951-8580
- Niigata University, Niigata 950-2181
| | - Y Onuki
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - G Pakhlova
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - B Pal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - C-S Park
- Yonsei University, Seoul 120-749
| | - C W Park
- Sungkyunkwan University, Suwon 440-746
| | - H Park
- Kyungpook National University, Daegu 702-701
| | - S Paul
- Department of Physics, Technische Universität München, 85748 Garching
| | | | - L E Piilonen
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - C Pulvermacher
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - J Rauch
- Department of Physics, Technische Universität München, 85748 Garching
| | - M Ritter
- Ludwig Maximilians University, 80539 Munich
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- University of Cincinnati, Cincinnati, Ohio 45221
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sanuki
- Department of Physics, Tohoku University, Sendai 980-8578
| | - Y Sato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - T Schlüter
- Ludwig Maximilians University, 80539 Munich
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - A J Schwartz
- University of Cincinnati, Cincinnati, Ohio 45221
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - O Seon
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - I S Seong
- University of Hawaii, Honolulu, Hawaii 96822
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - C P Shen
- Beihang University, Beijing 100191
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - R Sinha
- Institute of Mathematical Sciences, Chennai 600113
| | - E Solovieva
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - J F Strube
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - K Sumisawa
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - M Takizawa
- J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Theoretical Research Division, Nishina Center, RIKEN, Saitama 351-0198
- Showa Pharmaceutical University, Tokyo 194-8543
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | - F Tenchini
- School of Physics, University of Melbourne, Victoria 3010
| | - K Trabelsi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Tsuboyama
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - T Uglov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | - Y Ushiroda
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - S E Vahsen
- University of Hawaii, Honolulu, Hawaii 96822
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - K E Varvell
- School of Physics, University of Sydney, New South Wales 2006
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Vossen
- Indiana University, Bloomington, Indiana 47408
| | - E Waheed
- School of Physics, University of Melbourne, Victoria 3010
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | | | | | - E Widmann
- Stefan Meyer Institute for Subatomic Physics, Vienna 1090
| | - K M Williams
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - H Yamamoto
- Department of Physics, Tohoku University, Sendai 980-8578
| | | | - H Ye
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - Y Yook
- Yonsei University, Seoul 120-749
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Zhukova
- Moscow Physical Engineering Institute, Moscow 115409
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - M Ziegler
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
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31
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Mizuk R, Bondar A, Adachi I, Aihara H, Asner DM, Atmacan H, Aulchenko V, Aushev T, Ayad R, Badhrees I, Bakich AM, Barberio E, Behera P, Bhardwaj V, Bhuyan B, Biswal J, Bobrov A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Chobanova V, Choi SK, Choi Y, Cinabro D, Dalseno J, Danilov M, Dash N, Doležal Z, Drutskoy A, Eidelman S, Epifanov D, Ferber T, Fulsom BG, Gaur V, Garmash A, Gillard R, Goh YM, Goldenzweig P, Golob B, Greenwald D, Hara T, Hayasaka K, Hayashii H, Hou WS, Hsu CL, Inami K, Inguglia G, Ishikawa A, Iwasaki Y, Jaegle I, Julius T, Kang KH, Katrenko P, Kim DY, Kim HJ, Kim JB, Kim KT, Kim MJ, Kim SH, Kim YJ, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Krokovny P, Kuhr T, Kuzmin A, Kwon YJ, Lange JS, Li CH, Li H, Li L, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Matvienko D, Miyabayashi K, Miyata H, Mohanty GB, Moll A, Nakano E, Nakao M, Nanut T, Nath KJ, Negishi K, Niiyama M, Nisar NK, Nishida S, Ogawa S, Okuno S, Olsen SL, Onuki Y, Pakhlov P, Pakhlova G, Pal B, Park CW, Park H, Paul S, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Pulvermacher C, Ritter M, Sakai Y, Sandilya S, Sanuki T, Savinov V, Schlüter T, Schneider O, Schnell G, Schwanda C, Seino Y, Semmler D, Senyo K, Seon O, Sevior ME, Shebalin V, Shibata TA, Shiu JG, Shwartz B, Simon F, Solovieva E, Starič M, Stypula J, Sumiyoshi T, Takizawa M, Tamponi U, Tanida K, Teramoto Y, Tikhomirov I, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Van Hulse C, Varner G, Vorobyev V, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe Y, Williams KM, Won E, Yamaoka J, Yamashita Y, Yelton J, Yuan CZ, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Zupanc A. Energy Scan of the e^{+}e^{-}→h_{b}(nP)π^{+}π^{-} (n=1, 2) Cross Sections and Evidence for ϒ(11020) Decays into Charged Bottomoniumlike States. Phys Rev Lett 2016; 117:142001. [PMID: 27740802 DOI: 10.1103/physrevlett.117.142001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Indexed: 06/06/2023]
Abstract
Using data collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider, we measure the energy dependence of the e^{+}e^{-}→h_{b}(nP)π^{+}π^{-} (n=1, 2) cross sections from thresholds up to 11.02 GeV. We find clear ϒ(10860) and ϒ(11020) peaks with little or no continuum contribution. We study the resonant substructure of the ϒ(11020)→h_{b}(nP)π^{+}π^{-} transitions and find evidence that they proceed entirely via the intermediate isovector states Z_{b}(10610) and Z_{b}(10650). The relative fraction of these states is loosely constrained by the current data: The hypothesis that only Z_{b}(10610) is produced is excluded at the level of 3.3 standard deviations, while the hypothesis that only Z_{b}(10650) is produced is not excluded at a significant level.
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Affiliation(s)
- R Mizuk
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - A Bondar
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - H Atmacan
- Middle East Technical University, 06531 Ankara
| | - V Aulchenko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Aushev
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - E Barberio
- School of Physics, University of Melbourne, Victoria 3010
| | - P Behera
- Indian Institute of Technology, Madras, Chennai 600036
| | - V Bhardwaj
- University of South Carolina, Columbia, South Carolina 29208
| | - B Bhuyan
- Indian Institute of Technology, Guwahati, Assam 781039
| | - J Biswal
- J. Stefan Institute, 1000 Ljubljana
| | - A Bobrov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - R Chistov
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - S-K Choi
- Gyeongsang National University, Chinju 660-701
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - M Danilov
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - N Dash
- Indian Institute of Technology, Bhubaneswar, Satya Nagar 751007
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - A Drutskoy
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - P Goldenzweig
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - D Greenwald
- Department of Physics, Technische Universität München, 85748 Garching
| | - T Hara
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - C-L Hsu
- School of Physics, University of Melbourne, Victoria 3010
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - G Inguglia
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - A Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - K H Kang
- Kyungpook National University, Daegu 702-701
| | - P Katrenko
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - H J Kim
- Kyungpook National University, Daegu 702-701
| | - J B Kim
- Korea University, Seoul 136-713
| | - K T Kim
- Korea University, Seoul 136-713
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | | | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Li
- School of Physics, University of Melbourne, Victoria 3010
| | - H Li
- Indiana University, Bloomington, Indiana 47408
| | - L Li
- University of Science and Technology of China, Hefei 230026
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology, Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - M Lubej
- J. Stefan Institute, 1000 Ljubljana
| | - T Luo
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
| | - T Matsuda
- University of Miyazaki, Miyazaki 889-2192
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - K J Nath
- Indian Institute of Technology, Guwahati, Assam 781039
| | - K Negishi
- Department of Physics, Tohoku University, Sendai 980-8578
| | | | - N K Nisar
- Aligarh Muslim University, Aligarh 202002
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - S Okuno
- Kanagawa University, Yokohama 221-8686
| | - S L Olsen
- Seoul National University, Seoul 151-742
| | - Y Onuki
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - P Pakhlov
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - B Pal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - C W Park
- Sungkyunkwan University, Suwon 440-746
| | - H Park
- Kyungpook National University, Daegu 702-701
| | - S Paul
- Department of Physics, Technische Universität München, 85748 Garching
| | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - C Pulvermacher
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - M Ritter
- Ludwig Maximilians University, 80539 Munich
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- University of Cincinnati, Cincinnati, Ohio 45221
| | - T Sanuki
- Department of Physics, Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - T Schlüter
- Ludwig Maximilians University, 80539 Munich
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - D Semmler
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - O Seon
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - E Solovieva
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - J Stypula
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - M Takizawa
- Showa Pharmaceutical University, Tokyo 194-8543
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | - K Tanida
- Seoul National University, Seoul 151-742
| | | | - I Tikhomirov
- Moscow Physical Engineering Institute, Moscow 115409
| | - K Trabelsi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - T Uglov
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - X L Wang
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | | | - K M Williams
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - J Yelton
- University of Florida, Gainesville, Florida 32611
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Zhukova
- Moscow Physical Engineering Institute, Moscow 115409
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
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Yang SB, Tanida K, Kim BH, Adachi I, Aihara H, Asner DM, Aulchenko V, Aushev T, Babu V, Badhrees I, Bakich AM, Barberio E, Bhardwaj V, Bhuyan B, Biswal J, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho K, Chobanova V, Choi Y, Cinabro D, Dalseno J, Danilov M, Dash N, Doležal Z, Drásal Z, Dutta D, Eidelman S, Farhat H, Fast JE, Ferber T, Fulsom BG, Gabyshev N, Garmash A, Gaur V, Gillard R, Goh YM, Goldenzweig P, Greenwald D, Grygier J, Haba J, Hamer P, Hara T, Hayasaka K, Hayashii H, Hou WS, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki Y, Jacobs WW, Jaegle I, Jeon HB, Joo KK, Julius T, Kang KH, Kato E, Katrenko P, Kiesling C, Kim DY, Kim HJ, Kim JB, Kim KT, Kim MJ, Kim SH, Kim SK, Kim YJ, Kinoshita K, Kobayashi N, Kodyš P, Korpar S, Križan P, Krokovny P, Kuhr T, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Li CH, Li H, Li L, Li Y, Li Gioi L, Libby J, Liventsev D, Lubej M, Masuda M, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moll A, Moon HK, Mussa R, Nakano E, Nakao M, Nanut T, Nath KJ, Nayak M, Negishi K, Niiyama M, Nisar NK, Nishida S, Ogawa S, Okuno S, Olsen SL, Pakhlova G, Pal B, Park CW, Park H, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Pulvermacher C, Rauch J, Ritter M, Rostomyan A, Ryu S, Sahoo H, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schlüter T, Schneider O, Schnell G, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Seon O, Seong IS, Sevior ME, Shebalin V, Shibata TA, Shiu JG, Shwartz B, Simon F, Sohn YS, Sokolov A, Stanič S, Starič M, Stypula J, Sumihama M, Sumiyoshi T, Takizawa M, Tamponi U, Teramoto Y, Trabelsi K, Trusov V, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Vanhoefer P, Varner G, Varvell KE, Vinokurova A, Vossen A, Wagner MN, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe Y, Williams KM, Won E, Yamaoka J, Yashchenko S, Ye H, Yelton J, Yuan CZ, Yusa Y, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. First Observation of the Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: Λ_{c}^{+}→pK^{+}π^{-}. Phys Rev Lett 2016; 117:011801. [PMID: 27419562 DOI: 10.1103/physrevlett.117.011801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Indexed: 06/06/2023]
Abstract
We report the first observation of the decay Λ_{c}^{+}→pK^{+}π^{-} using a 980 fb^{-1} data sample collected by the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. This is the first observation of a doubly Cabibbo-suppressed decay of a charmed baryon. We measure the branching ratio of this decay with respect to its Cabibbo-favored counterpart to be B(Λ_{c}^{+}→pK^{+}π^{-})/B(Λ_{c}^{+}→pK^{-}π^{+})=(2.35±0.27±0.21)×10^{-3}, where the uncertainties are statistical and systematic, respectively.
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Affiliation(s)
- S B Yang
- Seoul National University, Seoul 151-742
| | - K Tanida
- Seoul National University, Seoul 151-742
| | - B H Kim
- Seoul National University, Seoul 151-742
| | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Aulchenko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Aushev
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - V Babu
- Tata Institute of Fundamental Research, Mumbai 400005
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - E Barberio
- School of Physics, University of Melbourne, Victoria 3010
| | - V Bhardwaj
- University of South Carolina, Columbia, South Carolina 29208
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - J Biswal
- J. Stefan Institute, 1000 Ljubljana
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- Moscow Physical Engineering Institute, Moscow 115409
| | - R Chistov
- Moscow Physical Engineering Institute, Moscow 115409
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - M Danilov
- Moscow Physical Engineering Institute, Moscow 115409
| | - N Dash
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - D Dutta
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - P Goldenzweig
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - D Greenwald
- Department of Physics, Technische Universität München, 85748 Garching
| | - J Grygier
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - J Haba
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Hamer
- II. Physikalisches Institut, Georg-August-Universität Göttingen, 37073 Göttingen
| | - T Hara
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - G Inguglia
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - A Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578
| | - R Itoh
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408
| | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - H B Jeon
- Kyungpook National University, Daegu 702-701
| | - K K Joo
- Chonnam National University, Kwangju 660-701
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - K H Kang
- Kyungpook National University, Daegu 702-701
| | - E Kato
- Department of Physics, Tohoku University, Sendai 980-8578
| | - P Katrenko
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - H J Kim
- Kyungpook National University, Daegu 702-701
| | - J B Kim
- Korea University, Seoul 136-713
| | - K T Kim
- Korea University, Seoul 136-713
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - S K Kim
- Seoul National University, Seoul 151-742
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - N Kobayashi
- Tokyo Institute of Technology, Tokyo 152-8550
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - I S Lee
- Hanyang University, Seoul 133-791
| | - C H Li
- School of Physics, University of Melbourne, Victoria 3010
| | - H Li
- Indiana University, Bloomington, Indiana 47408
| | - L Li
- University of Science and Technology of China, Hefei 230026
| | - Y Li
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - M Lubej
- J. Stefan Institute, 1000 Ljubljana
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Moscow Physical Engineering Institute, Moscow 115409
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | | | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - K J Nath
- Indian Institute of Technology Guwahati, Assam 781039
| | - M Nayak
- Indian Institute of Technology Madras, Chennai 600036
| | - K Negishi
- Department of Physics, Tohoku University, Sendai 980-8578
| | | | - N K Nisar
- Aligarh Muslim University, Aligarh 202002
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - S Okuno
- Kanagawa University, Yokohama 221-8686
| | - S L Olsen
- Seoul National University, Seoul 151-742
| | - G Pakhlova
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - B Pal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - C W Park
- Sungkyunkwan University, Suwon 440-746
| | - H Park
- Kyungpook National University, Daegu 702-701
| | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - C Pulvermacher
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - J Rauch
- Department of Physics, Technische Universität München, 85748 Garching
| | - M Ritter
- Ludwig Maximilians University, 80539 Munich
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Ryu
- Seoul National University, Seoul 151-742
| | - H Sahoo
- University of Hawaii, Honolulu, Hawaii 96822
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sanuki
- Department of Physics, Tohoku University, Sendai 980-8578
| | - Y Sato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - T Schlüter
- Ludwig Maximilians University, 80539 Munich
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - A J Schwartz
- University of Cincinnati, Cincinnati, Ohio 45221
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - O Seon
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - I S Seong
- University of Hawaii, Honolulu, Hawaii 96822
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - S Stanič
- University of Nova Gorica, 5000 Nova Gorica
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - J Stypula
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | | | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - M Takizawa
- Showa Pharmaceutical University, Tokyo 194-8543
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | | | - K Trabelsi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - V Trusov
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - T Uglov
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - K E Varvell
- School of Physics, University of Sydney, New South Wales 2006
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Vossen
- Indiana University, Bloomington, Indiana 47408
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - X L Wang
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | | | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - H Ye
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - J Yelton
- University of Florida, Gainesville, Florida 32611
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
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Garmash A, Abdesselam A, Adachi I, Aihara H, Asner DM, Aushev T, Ayad R, Aziz T, Babu V, Badhrees I, Bakich AM, Behera P, Bhardwaj V, Bhuyan B, Bobrov A, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Chobanova V, Choi Y, Cinabro D, Dalseno J, Danilov M, Dash N, Doležal Z, Drutskoy A, Dutta D, Eidelman S, Epifanov D, Farhat H, Fast JE, Ferber T, Fulsom BG, Gaur V, Gabyshev N, Gillard R, Goh YM, Goldenzweig P, Golob B, Hara T, Hayasaka K, Hayashii H, Iijima T, Ishikawa A, Itoh R, Iwasaki Y, Jaegle I, Joffe D, Joo KK, Julius T, Kang KH, Kato E, Kawasaki T, Kim DY, Kim JB, Kim KT, Kim MJ, Kim SH, Kim YJ, Kinoshita K, Korpar S, Križan P, Krokovny P, Kuhr T, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Li C, Li H, Li L, Li Gioi L, Libby J, Liventsev D, Lukin P, Masuda M, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moll A, Mori T, Mussa R, Nakano E, Nakao M, Nanut T, Natkaniec Z, Nishida S, Olsen SL, Pakhlov P, Pakhlova G, Pal B, Park H, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Pulvermacher C, Ribežl E, Ritter M, Rostomyan A, Sahoo H, Sakai Y, Sandilya S, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Seino Y, Semmler D, Senyo K, Seong IS, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Simon F, Sohn YS, Solovieva E, Starič M, Sumiyoshi T, Tamponi U, Tanida K, Teramoto Y, Trabelsi K, Uchida M, Uehara S, Uglov T, Uno S, Van Hulse C, Vanhoefer P, Varner G, Vorobyev V, Wagner MN, Wang CH, Wang MZ, Wang P, Watanabe Y, Williams KM, Won E, Yamamoto H, Yamaoka J, Yashchenko S, Yelton J, Yook Y, Yuan CZ, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. Observation of Z_{b}(10610) and Z_{b}(10650) Decaying to B Mesons. Phys Rev Lett 2016; 116:212001. [PMID: 27284649 DOI: 10.1103/physrevlett.116.212001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Indexed: 06/06/2023]
Abstract
We report the analysis of the three-body e^{+}e^{-}→BB[over ¯]π^{±}, BB[over ¯]^{*}π^{±}, and B^{*}B[over ¯]^{*}π^{±} processes, including the first observations of the Z_{b}^{±}(10610)→[BB[over ¯]^{*}+c.c.]^{±} and Z_{b}^{±}(10650)→[B^{*}B[over ¯]^{*}]^{±} transitions that are found to dominate the corresponding final states. We measure Born cross sections for the three-body production of σ(e^{+}e^{-}→[BB[over ¯]^{*}+c.c.]^{±}π^{∓})=[17.4±1.6(stat)±1.9(syst)] pb and σ(e^{+}e^{-}→[B^{*}B[over ¯]^{*}]^{±}π^{∓})=[8.75±1.15(stat)±1.04(syst)] pb and set a 90% C.L. upper limit of σ(e^{+}e^{-}→[BB[over ¯]]^{±}π^{∓})<2.9 pb. The results are based on a 121.4 fb^{-1} data sample collected with the Belle detector at a center-of-mass energy near the ϒ(10860) peak.
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Affiliation(s)
- A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Abdesselam
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Aushev
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - T Aziz
- Tata Institute of Fundamental Research, Mumbai 400005
| | - V Babu
- Tata Institute of Fundamental Research, Mumbai 400005
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - P Behera
- Indian Institute of Technology Madras, Chennai 600036
| | - V Bhardwaj
- University of South Carolina, Columbia, South Carolina 29208
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - A Bobrov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Bondar
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- Moscow Physical Engineering Institute, Moscow 115409
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - M Danilov
- Moscow Physical Engineering Institute, Moscow 115409
| | - N Dash
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - A Drutskoy
- Moscow Physical Engineering Institute, Moscow 115409
| | - D Dutta
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - P Goldenzweig
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - T Hara
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - R Itoh
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Joffe
- Kennesaw State University, Kennesaw, Georgia 30144
| | - K K Joo
- Chonnam National University, Kwangju 660-701
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - K H Kang
- Kyungpook National University, Daegu 702-701
| | - E Kato
- Tohoku University, Sendai 980-8578
| | | | - D Y Kim
- Soongsil University, Seoul 156-743
| | - J B Kim
- Korea University, Seoul 136-713
| | - K T Kim
- Korea University, Seoul 136-713
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - I S Lee
- Hanyang University, Seoul 133-791
| | - C Li
- School of Physics, University of Melbourne, Victoria 3010
| | - H Li
- Indiana University, Bloomington, Indiana 47408
| | - L Li
- University of Science and Technology of China, Hefei 230026
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - P Lukin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Moscow Physical Engineering Institute, Moscow 115409
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - T Mori
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - Z Natkaniec
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S L Olsen
- Seoul National University, Seoul 151-742
| | - P Pakhlov
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - B Pal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - H Park
- Kyungpook National University, Daegu 702-701
| | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - C Pulvermacher
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - E Ribežl
- J. Stefan Institute, 1000 Ljubljana
| | - M Ritter
- Max-Planck-Institut für Physik, 80805 München
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - H Sahoo
- University of Hawaii, Honolulu, Hawaii 96822
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | - T Sanuki
- Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - D Semmler
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - I S Seong
- University of Hawaii, Honolulu, Hawaii 96822
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - C P Shen
- Beihang University, Beijing 100191
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - E Solovieva
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | - K Tanida
- Seoul National University, Seoul 151-742
| | | | - K Trabelsi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - S Uehara
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Uglov
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | | | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | | | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - J Yelton
- University of Florida, Gainesville, Florida 32611
| | - Y Yook
- Yonsei University, Seoul 120-749
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
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Pal B, Schwartz AJ, Abdesselam A, Adachi I, Aihara H, Asner DM, Aushev T, Ayad R, Aziz T, Babu V, Badhrees I, Bahinipati S, Bakich AM, Barberio E, Behera P, Bhardwaj V, Bhuyan B, Biswal J, Bobrov A, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chistov R, Cho K, Chobanova V, Choi Y, Cinabro D, Dalseno J, Dash N, Doležal Z, Drásal Z, Drutskoy A, Dutta D, Eidelman S, Farhat H, Fast JE, Fulsom BG, Gaur V, Garmash A, Gillard R, Goh YM, Goldenzweig P, Greenwald D, Grzymkowska O, Haba J, Hara T, Hayasaka K, Hayashii H, He XH, Hou WS, Inami K, Ishikawa A, Iwasaki Y, Jacobs WW, Jaegle I, Jeon HB, Joffe D, Joo KK, Julius T, Kang KH, Kato E, Kawasaki T, Kiesling C, Kim DY, Kim HJ, Kim KT, Kim MJ, Kim SH, Kinoshita K, Kodyš P, Korpar S, Križan P, Krokovny P, Kuhr T, Kumar R, Kumita T, Kuzmin A, Kwon YJ, Lee IS, Li CH, Li H, Li L, Li Gioi L, Libby J, Liventsev D, Lukin P, Luo T, Masuda M, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Mohanty S, Moll A, Moon HK, Mori T, Mussa R, Nakano E, Nakao M, Nanut T, Natkaniec Z, Nayak M, Nisar NK, Nishida S, Ogawa S, Okuno S, Pakhlov P, Pakhlova G, Park CW, Park H, Paul S, Pedlar TK, Pesántez L, Pestotnik R, Petrič M, Piilonen LE, Pulvermacher C, Rauch J, Ribežl E, Ritter M, Rostomyan A, Ryu S, Sahoo H, Sakai Y, Sandilya S, Sanuki T, Sato Y, Savinov V, Schlüter T, Schneider O, Schnell G, Schwanda C, Seino Y, Senyo K, Seon O, Seong IS, Shebalin V, Shibata TA, Shiu JG, Shwartz B, Simon F, Sohn YS, Sokolov A, Solovieva E, Stanič S, Starič M, Stypula J, Sumihama M, Sumiyoshi T, Tamponi U, Teramoto Y, Trabelsi K, Uchida M, Uehara S, Uglov T, Uno S, Urquijo P, Usov Y, Van Hulse C, Vanhoefer P, Varner G, Vinokurova A, Vossen A, Wagner MN, Wang CH, Wang MZ, Wang XL, Watanabe M, Watanabe Y, Williams KM, Won E, Yamaoka J, Yelton J, Yuan CZ, Yusa Y, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. Observation of the Decay B_{s}^{0}→K^{0}K[over ¯]^{0}. Phys Rev Lett 2016; 116:161801. [PMID: 27152790 DOI: 10.1103/physrevlett.116.161801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Indexed: 06/05/2023]
Abstract
We measure the decay B_{s}^{0}→K^{0}K[over ¯]^{0} using data collected at the ϒ(5S) resonance with the Belle detector at the KEKB e^{+}e^{-} collider. The data sample used corresponds to an integrated luminosity of 121.4 fb^{-1}. We measure a branching fraction B(B_{s}^{0}→K^{0}K[over ¯]^{0})=[19.6_{-5.1}^{+5.8}(stat)±1.0(syst)±2.0(N_{B_{s}^{0}B[over ¯]_{s}^{0}})]×10^{-6} with a significance of 5.1 standard deviations. This measurement constitutes the first observation of this decay.
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Affiliation(s)
- B Pal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - A J Schwartz
- University of Cincinnati, Cincinnati, Ohio 45221
| | - A Abdesselam
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Aushev
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - T Aziz
- Tata Institute of Fundamental Research, Mumbai 400005
| | - V Babu
- Tata Institute of Fundamental Research, Mumbai 400005
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - S Bahinipati
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - E Barberio
- School of Physics, University of Melbourne, Victoria 3010
| | - P Behera
- Indian Institute of Technology Madras, Chennai 600036
| | - V Bhardwaj
- University of South Carolina, Columbia, South Carolina 29208
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - J Biswal
- J. Stefan Institute, 1000 Ljubljana
| | - A Bobrov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 12116 Prague
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - R Chistov
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - N Dash
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 12116 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 12116 Prague
| | - A Drutskoy
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - D Dutta
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - P Goldenzweig
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - D Greenwald
- Department of Physics, Technische Universität München, 85748 Garching
| | - O Grzymkowska
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - J Haba
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Hara
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - X H He
- Peking University, Beijing 100871
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - A Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408
| | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - H B Jeon
- Kyungpook National University, Daegu 702-701
| | - D Joffe
- Kennesaw State University, Kennesaw, Georgia 30144
| | - K K Joo
- Chonnam National University, Kwangju 660-701
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - K H Kang
- Kyungpook National University, Daegu 702-701
| | - E Kato
- Department of Physics, Tohoku University, Sendai 980-8578
| | | | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - H J Kim
- Kyungpook National University, Daegu 702-701
| | - K T Kim
- Korea University, Seoul 136-713
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 12116 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - R Kumar
- Punjab Agricultural University, Ludhiana 141004
| | - T Kumita
- Tokyo Metropolitan University, Tokyo 192-0397
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - I S Lee
- Hanyang University, Seoul 133-791
| | - C H Li
- School of Physics, University of Melbourne, Victoria 3010
| | - H Li
- Indiana University, Bloomington, Indiana 47408
| | - L Li
- University of Science and Technology of China, Hefei 230026
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - P Lukin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Luo
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
- Utkal University, Bhubaneswar 751004
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | | | - T Mori
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - Z Natkaniec
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Nayak
- Indian Institute of Technology Madras, Chennai 600036
| | - N K Nisar
- Aligarh Muslim University, Aligarh 202002
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - S Okuno
- Kanagawa University, Yokohama 221-8686
| | - P Pakhlov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - C W Park
- Sungkyunkwan University, Suwon 440-746
| | - H Park
- Kyungpook National University, Daegu 702-701
| | - S Paul
- Department of Physics, Technische Universität München, 85748 Garching
| | | | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - C Pulvermacher
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - J Rauch
- Department of Physics, Technische Universität München, 85748 Garching
| | - E Ribežl
- J. Stefan Institute, 1000 Ljubljana
| | - M Ritter
- Ludwig Maximilians University, 80539 Munich
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Ryu
- Seoul National University, Seoul 151-742
| | - H Sahoo
- University of Hawaii, Honolulu, Hawaii 96822
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | - T Sanuki
- Department of Physics, Tohoku University, Sendai 980-8578
| | - Y Sato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - T Schlüter
- Ludwig Maximilians University, 80539 Munich
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - O Seon
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - I S Seong
- University of Hawaii, Honolulu, Hawaii 96822
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - E Solovieva
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - S Stanič
- University of Nova Gorica, 5000 Nova Gorica
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - J Stypula
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | | | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | | | - K Trabelsi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - S Uehara
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Uglov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Vossen
- Indiana University, Bloomington, Indiana 47408
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - X L Wang
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | | | | | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - J Yelton
- University of Florida, Gainesville, Florida 32611
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
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Hmar RC, Kannangara DRW, Ramasamy SN, Baysari MT, Williams KM, Day RO. Understanding and improving the use of allopurinol in a teaching hospital. Intern Med J 2016; 45:383-90. [PMID: 25644128 DOI: 10.1111/imj.12701] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 01/25/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND An emphasis on renal function in deciding maintenance doses of allopurinol to prevent allopurinol hypersensitivity has resulted in ineffective prevention of attacks of gout. New therapeutic guidelines for gout have shifted the focus back to titrating maintenance doses to reach a serum uric acid (SUA) concentration target of ≤ 0.36 mmol/L. AIMS To examine trends in the prescribing of allopurinol in a teaching hospital and their concordance with the new guidelines for gout management, and to explore prescribers' approaches and attitudes to the use of allopurinol. METHODS An audit was conducted of all inpatients prescribed allopurinol at a teaching hospital between January 2008 and December 2012. Allopurinol dose, SUA, serum creatinine concentrations and estimated glomerular filtration rates were extracted from the hospital databases. Doctors from medical units who regularly prescribed allopurinol were interviewed. RESULTS The allopurinol dose prescribed in gout patients most commonly was a continuation of the pre-admission dosage. Dosage change during admission was rarely observed. Dosages reflected a consideration of renal function. SUA concentrations were measured in only 21% (n = 269) of gout patients. Prescriber interviews (n = 12) reflected adequate knowledge regarding allopurinol use, but most maintained that the primary care setting was more suitable for the management of dose titration in gout. CONCLUSIONS SUA concentrations were not routinely measured in the majority of admitted gout patients taking allopurinol. Without SUA measurements and allopurinol dose titration, patients with SUA > 0.36 mmol/L are at increased risk for acute attacks of gout in hospital.
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Affiliation(s)
- R C Hmar
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, New South Wales, Australia; St Vincent's Clinical School, University of New South Wales, Sydney, New South Wales, Australia
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36
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Williams KM, Ahn KW, Chen M, Aljurf MD, Agwu AL, Chen AR, Walsh TJ, Szabolcs P, Boeckh MJ, Auletta JJ, Lindemans CA, Zanis-Neto J, Malvezzi M, Lister J, de Toledo Codina JS, Sackey K, Chakrabarty JLH, Ljungman P, Wingard JR, Seftel MD, Seo S, Hale GA, Wirk B, Smith MS, Savani BN, Lazarus HM, Marks DI, Ustun C, Abdel-Azim H, Dvorak CC, Szer J, Storek J, Yong A, Riches MR. The incidence, mortality and timing of Pneumocystis jiroveci pneumonia after hematopoietic cell transplantation: a CIBMTR analysis. Bone Marrow Transplant 2016; 51:573-80. [PMID: 26726945 PMCID: PMC4823157 DOI: 10.1038/bmt.2015.316] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 10/13/2015] [Accepted: 11/01/2015] [Indexed: 11/09/2022]
Abstract
Pneumocystis jiroveci pneumonia (PJP) is associated with high morbidity and mortality after hematopoietic stem cell transplantation (HSCT). Little is known about PJP infections after HSCT because of the rarity of disease given routine prophylaxis. We report the results of a Center for International Blood and Marrow Transplant Research study evaluating the incidence, timing, prophylaxis agents, risk factors and mortality of PJP after autologous (auto) and allogeneic (allo) HSCT. Between 1995 and 2005, 0.63% allo recipients and 0.28% auto recipients of first HSCT developed PJP. Cases occurred as early as 30 days to beyond a year after allo HSCT. A nested case cohort analysis with supplemental data (n=68 allo cases, n=111 allo controls) revealed that risk factors for PJP infection included lymphopenia and mismatch after HSCT. After allo or auto HSCT, overall survival was significantly poorer among cases vs controls (P=0.0004). After controlling for significant variables, the proportional hazards model revealed that PJP cases were 6.87 times more likely to die vs matched controls (P<0.0001). We conclude PJP infection is rare after HSCT but is associated with high mortality. Factors associated with GVHD and with poor immune reconstitution are among the risk factors for PJP and suggest that protracted prophylaxis for PJP in high-risk HSCT recipients may improve outcomes.
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Affiliation(s)
- K M Williams
- Children's Research Institute, Children's National Health System, Washington, DC, USA
| | - K W Ahn
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Division of Biostatistics, Institute for Health and Society, Medical College of Wisconsin, Milwaukee, WI, USA
| | - M Chen
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - M D Aljurf
- Department of Oncology, King Faisal Specialist Hospital Center & Research, Riyadh, Saudi Arabia
| | - A L Agwu
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A R Chen
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - T J Walsh
- Division of Blood and Marrow Transplantation and Cellular Therapies, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | - P Szabolcs
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - M J Boeckh
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - J J Auletta
- Divisions of Hematology/Oncology, Bone Marrow Transplantation and Infectious Diseases, Nationwide Children's Hospital, Columbus, OH, USA
| | - C A Lindemans
- Pediatric Blood and Marrow Transplantation Program, University Medical Center Utrecht, Utrecht, Netherlands
| | - J Zanis-Neto
- Hospital de Clínicas - Universidade Federal do Paraná, Curitiba, Brazil
| | - M Malvezzi
- Hospital de Clínicas - Universidade Federal do Paraná, Curitiba, Brazil
| | - J Lister
- Cell Transplantation Program, Western Pennsylvania Cancer Institute, Pittsburgh, PA, USA
| | - J S de Toledo Codina
- Paediatric Oncology, Haematology and SCT Department, Hospital Infantil Vall d'Hebron, Barcelona, Spain
| | - K Sackey
- Department of Pediatric Hematology/Oncology, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - J L H Chakrabarty
- Department of Hematology/Oncology, University of Oklahoma, Oklahoma City, OK, USA
| | - P Ljungman
- Department of Hematology, Karolinska University, Stockholm, Sweden
| | - J R Wingard
- Division of Hematology & Oncology, Department of Medicine, University of Florida, Gainesville, FL, USA
| | - M D Seftel
- Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - S Seo
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - G A Hale
- Department of Hematology/Oncology, All Children's Hospital, St. Petersburg, FL, USA
| | - B Wirk
- Division of Bone Marrow Transplant, Seattle Cancer Care Alliance, Seattle, WA, USA
| | - M S Smith
- Viracor-IBT Laboratories, Lee's Summit, MO, USA
| | - B N Savani
- Division of Hematology/Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - H M Lazarus
- Seidman Cancer Center, University Hospitals Case Medical Center, Cleveland, OH, USA
| | - D I Marks
- Pediatric Bone Marrow Transplant, University Hospitals Bristol NHS Trust, Bristol, UK
| | - C Ustun
- Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota Medical Center, Minneapolis, MN, USA
| | - H Abdel-Azim
- Division of Hematology, Oncology and Blood & Marrow Transplantation, Children's Hospital Los Angeles, University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - C C Dvorak
- Department of Pediatrics, University of California San Francisco Medical Center, San Francisco, CA, USA
| | - J Szer
- Department Clinical Haematology and Bone Marrow Transplantation, Royal Melbourne Hospital, Victoria, Australia
| | - J Storek
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - A Yong
- Royal Adelaide Hospital/SA Pathology and School of Medicine, University of Adelaide, Adelaide, Australia
| | - M R Riches
- Division of Hematology and Oncology, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
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37
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Chang YY, Wang MZ, Abdesselam A, Adachi I, Adamczyk K, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Babu V, Badhrees I, Bakich AM, Barberio E, Bhuyan B, Biswal J, Bobrov A, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Chobanova V, Choi SK, Choi Y, Cinabro D, Dalseno J, Danilov M, Dingfelder J, Doležal Z, Drásal Z, Dutta D, Eidelman S, Farhat H, Fast JE, Ferber T, Fulsom BG, Gaur V, Gabyshev N, Ganguly S, Garmash A, Gillard R, Glattauer R, Goh YM, Goldenzweig P, Greenwald D, Grzymkowska O, Haba J, Hayasaka K, Hayashii H, He XH, Hou WS, Hsu CL, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki Y, Jacobs WW, Jaegle I, Joffe D, Joo KK, Kawasaki T, Kim DY, Kim HJ, Kim JB, Kim JH, Kim KT, Kim MJ, Kim SH, Kim YJ, Kinoshita K, Korpar S, Križan P, Krokovny P, Kuhr T, Kumita T, Kuzmin A, Kwon YJ, Lai YT, Lee IS, Li L, Li Y, Libby J, Liventsev D, Lukin P, Masuda M, Matvienko D, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Mohanty GB, Mohanty S, Moll A, Moon HK, Mori T, Nakano E, Nakao M, Nanut T, Nayak M, Nishida S, Ogawa S, Ozaki H, Pakhlov P, Pakhlova G, Pal B, Park CW, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Rauch J, Ribežl E, Ritter M, Rostomyan A, Ryu S, Sahoo H, Sakai Y, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Seino Y, Senyo K, Seong IS, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Simon F, Sohn YS, Starič M, Stypula J, Sumihama M, Sumisawa K, Sumiyoshi T, Tamponi U, Tanida K, Teramoto Y, Uglov T, Unno Y, Uno S, Usov Y, Van Hulse C, Vanhoefer P, Varner G, Vorobyev V, Vossen A, Wagner MN, Wang CH, Wang P, Watanabe M, Watanabe Y, Williams KM, Won E, Yamaoka J, Yashchenko S, Yelton J, Yusa Y, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. Observation of B^{0}→pΛ[over ¯]D^{(*)-}. Phys Rev Lett 2015; 115:221803. [PMID: 26650291 DOI: 10.1103/physrevlett.115.221803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Indexed: 06/05/2023]
Abstract
We report the first observation of the decays B^{0}→pΛ[over ¯]D^{(*)-}. The data sample of 711 fb^{-1} used in this analysis corresponds to 772×10^{6} BB[over ¯] pairs, collected at the ϒ(4S) resonance by the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We observe 19.8σ and 10.8σ excesses of events for the two decay modes and measure the branching fractions of B^{0}→pΛ[over ¯]D^{-} and B^{0}→pΛ[over ¯]D^{*-} to be (25.1±2.6±3.5)×10^{-6} and (33.6±6.3±4.4)×10^{-6}, respectively, where the first uncertainties are statistical and the second are systematic. These results are not compatible with the predictions based on the generalized factorization approach. In addition, a threshold enhancement in the dibaryon (pΛ[over ¯]) system is observed, consistent with that observed in similar B decays.
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Affiliation(s)
- Y-Y Chang
- Department of Physics, National Taiwan University, Taipei 10617
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - A Abdesselam
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Adamczyk
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - S Al Said
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - H Atmacan
- Middle East Technical University, 06531 Ankara
| | - T Aushev
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - V Babu
- Tata Institute of Fundamental Research, Mumbai 400005
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - A M Bakich
- School of Physics, University of Sydney, NSW 2006
| | - E Barberio
- School of Physics, University of Melbourne, Victoria 3010
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - J Biswal
- J. Stefan Institute, 1000 Ljubljana
| | - A Bobrov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - R Chistov
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - S-K Choi
- Gyeongsang National University, Chinju 660-701
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - M Danilov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | | | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - D Dutta
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - S Ganguly
- Wayne State University, Detroit, Michigan 48202
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - R Glattauer
- Institute of High Energy Physics, Vienna 1050
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - P Goldenzweig
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - D Greenwald
- Department of Physics, Technische Universität München, 85748 Garching
| | - O Grzymkowska
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - J Haba
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - X H He
- Peking University, Beijing 100871
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - C-L Hsu
- School of Physics, University of Melbourne, Victoria 3010
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | | | - R Itoh
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408
| | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Joffe
- Kennesaw State University, Kennesaw, Georgia 30144
| | - K K Joo
- Chonnam National University, Kwangju 660-701
| | | | - D Y Kim
- Soongsil University, Seoul 156-743
| | - H J Kim
- Kyungpook National University, Daegu 702-701
| | - J B Kim
- Korea University, Seoul 136-713
| | - J H Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K T Kim
- Korea University, Seoul 136-713
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - T Kumita
- Tokyo Metropolitan University, Tokyo 192-0397
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - Y-T Lai
- Department of Physics, National Taiwan University, Taipei 10617
| | - I S Lee
- Hanyang University, Seoul 133-791
| | - L Li
- University of Science and Technology of China, Hefei 230026
| | - Y Li
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - P Lukin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | | | - H Miyake
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
- Utkal University, Bhubaneswar 751004
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | | | - T Mori
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - M Nayak
- Indian Institute of Technology Madras, Chennai 600036
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - H Ozaki
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Pakhlov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - B Pal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - C W Park
- Sungkyunkwan University, Suwon 440-746
| | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - J Rauch
- Department of Physics, Technische Universität München, 85748 Garching
| | - E Ribežl
- J. Stefan Institute, 1000 Ljubljana
| | - M Ritter
- Max-Planck-Institut für Physik, 80805 München
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Ryu
- Seoul National University, Seoul 151-742
| | - H Sahoo
- University of Hawaii, Honolulu, Hawaii 96822
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sanuki
- Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - I S Seong
- University of Hawaii, Honolulu, Hawaii 96822
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - C P Shen
- Beihang University, Beijing 100191
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - J Stypula
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | | | - K Sumisawa
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | - K Tanida
- Seoul National University, Seoul 151-742
| | | | - T Uglov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Vossen
- Indiana University, Bloomington, Indiana 47408
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Wang
- National United University, Miao Li 36003
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | | | | | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - J Yelton
- University of Florida, Gainesville, Florida 32611
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
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Tamponi U, Mussa R, Abdesselam A, Aihara H, Arinstein K, Asner DM, Atmacan H, Aushev T, Ayad R, Badhrees I, Bakich AM, Barberio E, Bhardwaj V, Bhuyan B, Biswal J, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chen A, Cheon BG, Cho K, Chobanova V, Choi SK, Choi Y, Cinabro D, Danilov M, Doležal Z, Drásal Z, Drutskoy A, Eidelman S, Epifanov D, Farhat H, Fast JE, Ferber T, Fulsom BG, Gaur V, Gabyshev N, Garmash A, Getzkow D, Gillard R, Goh YM, Golob B, Haba J, Hayasaka K, Hayashii H, He XH, Hedges MT, Hou WS, Iijima T, Inami K, Ishikawa A, Jaegle I, Joffe D, Julius T, Kato E, Katrenko P, Kichimi H, Kiesling C, Kim DY, Kim HJ, Kim JH, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Križan P, Krokovny P, Kumita T, Kuzmin A, Lange JS, Lewis P, Libby J, Lukin P, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moll A, Mori T, Nakano E, Nakao M, Nanut T, Natkaniec Z, Nayak M, Nisar NK, Nishida S, Ogawa S, Okuno S, Olsen SL, Ostrowicz W, Oswald C, Pakhlova G, Pal B, Park H, Pedlar TK, Pesántez L, Pestotnik R, Petrič M, Piilonen LE, Ribežl E, Ritter M, Rostomyan A, Ryu S, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schneider O, Schnell G, Schwanda C, Semmler D, Senyo K, Sevior ME, Shapkin M, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Sibidanov A, Simon F, Sohn YS, Sokolov A, Starič M, Steder M, Stypula J, Tanida K, Teramoto Y, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Van Hulse C, Vanhoefer P, Varner G, Vinokurova A, Vossen A, Wagner MN, Wang MZ, Wang XL, Watanabe Y, Williams KM, Won E, Yamaoka J, Yashchenko S, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. First Observation of the Hadronic Transition ϒ(4S)→ηh(b)(1P) and New Measurement of the h(b)(1P) and η(b)(1S) Parameters. Phys Rev Lett 2015; 115:142001. [PMID: 26551806 DOI: 10.1103/physrevlett.115.142001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Indexed: 06/05/2023]
Abstract
Using a sample of 771.6×10(6) ϒϒ(4S) decays collected by the Belle experiment at the KEKB e(+)e(-) collider, we observe, for the first time, the transition ϒ(4S)→ηh(b)(1P) with the branching fraction B[ϒ(4S)→ηh(b)(1P)]=(2.18±0.11±0.18)×10(-3) and we measure the h(b)(1P) mass M(h(b)(1P))=(9899.3±0.4±1.0) MeV/c(2), corresponding to the hyperfine (HF) splitting ΔM(HF)(1P)=(0.6±0.4±1.0) MeV/c(2). Using the transition h(b)(1P)→γη(b)(1S), we measure the η(b)(1S) mass M(η(b)(1S))=(9400.7±1.7±1.6) MeV/c(2), corresponding to ΔM(HF)(1S)=(59.6±1.7±1.6) MeV/c(2), the η(b)(1S) width Γ(η(b)(1S))=(8(-5)(+6)±5) MeV/c(2) and the branching fraction B[h(b)(1P)→γη(b)(1S)]=(56±8±4)%.
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Affiliation(s)
- U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - A Abdesselam
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - K Arinstein
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - H Atmacan
- Middle East Technical University, 06531 Ankara
| | - T Aushev
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - E Barberio
- School of Physics, University of Melbourne, Victoria 3010
| | - V Bhardwaj
- University of South Carolina, Columbia, South Carolina 29208
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - J Biswal
- J. Stefan Institute, 1000 Ljubljana
| | - A Bondar
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - S-K Choi
- Gyeongsang National University, Chinju 660-701
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - M Danilov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - A Drutskoy
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Getzkow
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - J Haba
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - X H He
- Peking University, Beijing 100871
| | - M T Hedges
- University of Hawaii, Honolulu, Hawaii 96822
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | | | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Joffe
- Kennesaw State University, Kennesaw, Georgia 30144
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - E Kato
- Tohoku University, Sendai 980-8578
| | - P Katrenko
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - H Kichimi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - H J Kim
- Kyungpook National University, Daegu 702-701
| | - J H Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K T Kim
- Korea University, Seoul 136-713
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - T Kumita
- Tokyo Metropolitan University, Tokyo 192-0397
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - P Lewis
- University of Hawaii, Honolulu, Hawaii 96822
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - P Lukin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - T Mori
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - Z Natkaniec
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Nayak
- Indian Institute of Technology Madras, Chennai 600036
| | - N K Nisar
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - S Okuno
- Kanagawa University, Yokohama 221-8686
| | - S L Olsen
- Seoul National University, Seoul 151-742
| | - W Ostrowicz
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | | | - G Pakhlova
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - B Pal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - H Park
- Kyungpook National University, Daegu 702-701
| | | | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Ribežl
- J. Stefan Institute, 1000 Ljubljana
| | - M Ritter
- Max-Planck-Institut für Physik, 80805 München
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Ryu
- Seoul National University, Seoul 151-742
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sanuki
- Tohoku University, Sendai 980-8578
| | - Y Sato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - D Semmler
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - M Shapkin
- Institute for High Energy Physics, Protvino 142281
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - C P Shen
- Beihang University, Beijing 100191
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Sibidanov
- School of Physics, University of Sydney, New South Wales 2006
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - M Steder
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - J Stypula
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - K Tanida
- Seoul National University, Seoul 151-742
| | | | - K Trabelsi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - T Uglov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Vossen
- Indiana University, Bloomington, Indiana 47408
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - X L Wang
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | | | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
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Abdesselam A, Adachi I, Adametz A, Adye T, Ahmed H, Aihara H, Akar S, Alam MS, Albert J, Al Said S, Andreassen R, Angelini C, Anulli F, Arinstein K, Arnaud N, Asner DM, Aston D, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bahinipati S, Bakich AM, Band HR, Banerjee S, Barberio E, Bard DJ, Barlow RJ, Batignani G, Beaulieu A, Bellis M, Ben-Haim E, Bernard D, Bernlochner FU, Bettarini S, Bettoni D, Bevan AJ, Bhardwaj V, Bhuyan B, Bianchi F, Biasini M, Biswal J, Blinov VE, Bloom PC, Bobrov A, Bomben M, Bondar A, Bonneaud GR, Bonvicini G, Bozek A, Bozzi C, Bračko M, Briand H, Browder TE, Brown DN, Brown DN, Bünger C, Burchat PR, Buzykaev AR, Calabrese R, Calcaterra A, Calderini G, Carpinelli M, Cartaro C, Casarosa G, Cenci R, Červenkov D, Chang P, Chao DS, Chauveau J, Cheaib R, Chekelian V, Chen A, Chen C, Cheng CH, Cheon BG, Chilikin K, Chistov R, Cho K, Chobanova V, Choi HHF, Choi SK, Chrzaszcz M, Cibinetto G, Cinabro D, Cochran J, Coleman JP, Contri R, Convery MR, Cowan G, Cowan R, Cremaldi L, Dalseno J, Dasu S, Davier M, Davis CL, De Mori F, De Nardo G, Denig AG, Derkach D, de Sangro R, Dey B, Di Lodovico F, Dingfelder J, Dittrich S, Doležal Z, Dorfan J, Drásal Z, Drutskoy A, Druzhinin VP, Dubois-Felsmann GP, Dunwoodie W, Dutta D, Ebert M, Echenard B, Eidelman S, Eigen G, Eisner AM, Emery S, Ernst JA, Faccini R, Farhat H, Fast JE, Feindt M, Ferber T, Ferrarotto F, Ferroni F, Field RC, Filippi A, Finocchiaro G, Fioravanti E, Flood KT, Ford WT, Forti F, Franco Sevilla M, Fritsch M, Fry JR, Fulsom BG, Gabathuler E, Gabyshev N, Gamba D, Garmash A, Gary JW, Garzia I, Gaspero M, Gaur V, Gaz A, Gershon TJ, Getzkow D, Gillard R, Li Gioi L, Giorgi MA, Glattauer R, Godang R, Goh YM, Goldenzweig P, Golob B, Golubev VB, Gorodeisky R, Gradl W, Graham MT, Grauges E, Griessinger K, Gritsan AV, Grosdidier G, Grünberg O, Guttman N, Haba J, Hafner A, Hamilton B, Hara T, Harrison PF, Hast C, Hayasaka K, Hayashii H, Hearty C, He XH, Hess M, Hitlin DG, Hong TM, Honscheid K, Hou WS, 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Yamaoka J, Yashchenko S, Yuan CZ, Yusa Y, Zallo A, Zhang CC, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. First Observation of CP Violation in B[over ¯]^{0}→D_{CP}^{(*)}h^{0} Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data. Phys Rev Lett 2015; 115:121604. [PMID: 26430984 DOI: 10.1103/physrevlett.115.121604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Indexed: 06/05/2023]
Abstract
We report a measurement of the time-dependent CP asymmetry of B[over ¯]^{0}→D_{CP}^{(*)}h^{0} decays, where the light neutral hadron h^{0} is a π^{0}, η, or ω meson, and the neutral D meson is reconstructed in the CP eigenstates K^{+}K^{-}, K_{S}^{0}π^{0}, or K_{S}^{0}ω. The measurement is performed combining the final data samples collected at the ϒ(4S) resonance by the BABAR and Belle experiments at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×10^{6} BB[over ¯] pairs recorded by the BABAR detector and (772±11)×10^{6} BB[over ¯] pairs recorded by the Belle detector. We measure the CP asymmetry parameters -η_{f}S=+0.66±0.10(stat)±0.06(syst) and C=-0.02±0.07(stat)±0.03(syst). These results correspond to the first observation of CP violation in B[over ¯]^{0}→D_{CP}^{(*)}h^{0} decays. The hypothesis of no mixing-induced CP violation is excluded in these decays at the level of 5.4 standard deviations.
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Affiliation(s)
- A Abdesselam
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451, Kingdom of Saudi Arabia
| | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - A Adametz
- Universität Heidelberg, Physikalisches Institut, D-69120 Heidelberg, Germany
| | - T Adye
- Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
| | - H Ahmed
- Physics Department, Jazan University, Jazan 22822, Kingdom of Saudi Arabia
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - S Akar
- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
| | - M S Alam
- State University of New York, Albany, New York 12222, USA
| | - J Albert
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - S Al Said
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Kingdom of Saudi Arabia
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451, Kingdom of Saudi Arabia
| | - R Andreassen
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - C Angelini
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - F Anulli
- INFN Sezione di Roma, I-00185 Roma, Italy
| | - K Arinstein
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - N Arnaud
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - D Aston
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - V Aulchenko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - T Aushev
- Institute for Theoretical and Experimental Physics, Moscow 117218, Russian Federation
- Moscow Institute of Physics and Technology, Moscow Region 141700, Russian Federation
| | - R Ayad
- Colorado State University, Fort Collins, Colorado 80523, USA
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451, Kingdom of Saudi Arabia
| | - V Babu
- Tata Institute of Fundamental Research, Mumbai 400005, India
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442, Kingdom of Saudi Arabia
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451, Kingdom of Saudi Arabia
| | - S Bahinipati
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007, India
| | - A M Bakich
- School of Physics, University of Sydney, Sydney, NSW 2006, Australia
| | - H R Band
- University of Wisconsin, Madison, Wisconsin 53706, USA
| | - Sw Banerjee
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - E Barberio
- School of Physics, University of Melbourne, Victoria 3010, Australia
| | - D J Bard
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - R J Barlow
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - G Batignani
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - A Beaulieu
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - M Bellis
- Stanford University, Stanford, California 94305-4060, USA
| | - E Ben-Haim
- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
| | - D Bernard
- Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France
| | - F U Bernlochner
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - S Bettarini
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
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- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
| | - A J Bevan
- Queen Mary, University of London, London E1 4NS, United Kingdom
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- University of South Carolina, Columbia, South Carolina 29208, USA
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- Indian Institute of Technology Guwahati, Guwahati, Assam 781 039, India
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- INFN Sezione di Torino, I-10125 Torino, Italy
- Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy
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- INFN Sezione di Perugia, I-06123 Perugia, Italy
- Dipartimento di Fisica, Università di Perugia, I-06123 Perugia, Italy
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- J. Stefan Institute, 1000 Ljubljana, Slovenia
| | - V E Blinov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
- Novosibirsk State Technical University, Novosibirsk 630092, Russian Federation
| | - P C Bloom
- University of Colorado, Boulder, Colorado 80309, USA
| | - A Bobrov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
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- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
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- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
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- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202, USA
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- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342, Poland
| | - C Bozzi
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana, Slovenia
- University of Maribor, 2000 Maribor, Slovenia
| | - H Briand
- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822, USA
| | - D N Brown
- Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
| | - D N Brown
- University of Louisville, Louisville, Kentucky 40292, USA
| | - C Bünger
- Universität Rostock, D-18051 Rostock, Germany
| | - P R Burchat
- Stanford University, Stanford, California 94305-4060, USA
| | - A R Buzykaev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
| | - R Calabrese
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy
| | - A Calcaterra
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - G Calderini
- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
| | - M Carpinelli
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - C Cartaro
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - G Casarosa
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - R Cenci
- University of Maryland, College Park, Maryland 20742, USA
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague, Czech Republic
| | - P Chang
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - D S Chao
- California Institute of Technology, Pasadena, California 91125, USA
| | - J Chauveau
- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
| | - R Cheaib
- McGill University, Montréal, Québec H3A 2T8, Canada
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München, Germany
| | - A Chen
- National Central University, Chung-li 32054, Taiwan
| | - C Chen
- Iowa State University, Ames, Iowa 50011-3160, USA
| | - C H Cheng
- California Institute of Technology, Pasadena, California 91125, USA
| | - B G Cheon
- Hanyang University, Seoul 133-791, South Korea
| | - K Chilikin
- Institute for Theoretical and Experimental Physics, Moscow 117218, Russian Federation
| | - R Chistov
- Institute for Theoretical and Experimental Physics, Moscow 117218, Russian Federation
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806, South Korea
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München, Germany
| | - H H F Choi
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - S-K Choi
- Gyeongsang National University, Chinju 660-701, South Korea
| | | | - G Cibinetto
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202, USA
| | - J Cochran
- Iowa State University, Ames, Iowa 50011-3160, USA
| | - J P Coleman
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - R Contri
- INFN Sezione di Genova, I-16146 Genova, Italy
- Dipartimento di Fisica, Università di Genova, I-16146 Genova, Italy
| | - M R Convery
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - G Cowan
- University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom
| | - R Cowan
- Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - L Cremaldi
- University of Mississippi, University, Mississippi 38677, USA
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München, Germany
- Excellence Cluster Universe, Technische Universität München, 85748 Garching, Germany
| | - S Dasu
- University of Wisconsin, Madison, Wisconsin 53706, USA
| | - M Davier
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - C L Davis
- University of Louisville, Louisville, Kentucky 40292, USA
| | - F De Mori
- INFN Sezione di Torino, I-10125 Torino, Italy
- Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy
| | - G De Nardo
- INFN Sezione di Napoli, I-80126 Napoli, Italy
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy
| | - A G Denig
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - D Derkach
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - R de Sangro
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - B Dey
- University of California at Riverside, Riverside, California 92521, USA
| | - F Di Lodovico
- Queen Mary, University of London, London E1 4NS, United Kingdom
| | | | - S Dittrich
- Universität Rostock, D-18051 Rostock, Germany
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague, Czech Republic
| | - J Dorfan
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague, Czech Republic
| | - A Drutskoy
- Institute for Theoretical and Experimental Physics, Moscow 117218, Russian Federation
- Moscow Physical Engineering Institute, Moscow 115409, Russian Federation
| | - V P Druzhinin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | | | - W Dunwoodie
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - D Dutta
- Tata Institute of Fundamental Research, Mumbai 400005, India
| | - M Ebert
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - B Echenard
- California Institute of Technology, Pasadena, California 91125, USA
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - G Eigen
- University of Bergen, Institute of Physics, N-5007 Bergen, Norway
| | - A M Eisner
- University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
| | - S Emery
- CEA, Irfu, SPP, Centre de Saclay, F-91191 Gif-sur-Yvette, France
| | - J A Ernst
- State University of New York, Albany, New York 12222, USA
| | - R Faccini
- INFN Sezione di Roma, I-00185 Roma, Italy
- Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202, USA
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - M Feindt
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany
| | | | - F Ferroni
- INFN Sezione di Roma, I-00185 Roma, Italy
- Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy
| | - R C Field
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - A Filippi
- INFN Sezione di Torino, I-10125 Torino, Italy
| | - G Finocchiaro
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - E Fioravanti
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy
| | - K T Flood
- California Institute of Technology, Pasadena, California 91125, USA
| | - W T Ford
- University of Colorado, Boulder, Colorado 80309, USA
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- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - M Franco Sevilla
- University of California at Santa Barbara, Santa Barbara, California 93106, USA
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- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - J R Fry
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - E Gabathuler
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - D Gamba
- INFN Sezione di Torino, I-10125 Torino, Italy
- Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy
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- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
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- University of California at Riverside, Riverside, California 92521, USA
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- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy
| | - M Gaspero
- INFN Sezione di Roma, I-00185 Roma, Italy
- Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005, India
| | - A Gaz
- University of Colorado, Boulder, Colorado 80309, USA
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- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
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- Justus-Liebig-Universität Gießen, 35392 Gießen, Germany
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- Wayne State University, Detroit, Michigan 48202, USA
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- Max-Planck-Institut für Physik, 80805 München, Germany
| | - M A Giorgi
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - R Glattauer
- Institute of High Energy Physics, Vienna 1050, Austria
| | - R Godang
- University of Mississippi, University, Mississippi 38677, USA
| | - Y M Goh
- Hanyang University, Seoul 133-791, South Korea
| | - P Goldenzweig
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - V B Golubev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
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- Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel
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- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - M T Graham
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - E Grauges
- Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona, Spain
| | - K Griessinger
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
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- Johns Hopkins University, Baltimore, Maryland 21218, USA
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- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - O Grünberg
- Universität Rostock, D-18051 Rostock, Germany
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- Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel
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- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
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- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - B Hamilton
- University of Maryland, College Park, Maryland 20742, USA
| | - T Hara
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - P F Harrison
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
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- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602, Japan
| | - H Hayashii
- Nara Women's University, Nara 630-8506, Japan
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- University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
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- Peking University, Beijing 100871, China
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- Universität Rostock, D-18051 Rostock, Germany
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- California Institute of Technology, Pasadena, California 91125, USA
| | - T M Hong
- University of California at Santa Barbara, Santa Barbara, California 93106, USA
| | - K Honscheid
- Ohio State University, Columbus, Ohio 43210, USA
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - Z Huard
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - D E Hutchcroft
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602, Japan
| | - G Inguglia
- Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany
| | - W R Innes
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - A Ishikawa
- Tohoku University, Sendai 980-8578, Japan
| | - R Itoh
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - J M Izen
- University of Texas at Dallas, Richardson, Texas 75083, USA
| | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822, USA
| | - A Jawahery
- University of Maryland, College Park, Maryland 20742, USA
| | - C P Jessop
- University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - D Joffe
- Kennesaw State University, Kennesaw, Georgia 30144, USA
| | - K K Joo
- Chonnam National University, Kwangju 660-701, South Korea
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010, Australia
| | - K H Kang
- Kyungpook National University, Daegu 702-701, South Korea
| | - R Kass
- Ohio State University, Columbus, Ohio 43210, USA
| | - T Kawasaki
- Niigata University, Niigata 950-2181, Japan
| | - L T Kerth
- Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
| | - A Khan
- Brunel University, Uxbridge, Middlesex UB8 3PH, United Kingdom
| | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München, Germany
| | - D Y Kim
- Soongsil University, Seoul 156-743, South Korea
| | - J B Kim
- Korea University, Seoul 136-713, South Korea
| | - J H Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806, South Korea
| | - K T Kim
- Korea University, Seoul 136-713, South Korea
| | - P Kim
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - S H Kim
- Hanyang University, Seoul 133-791, South Korea
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806, South Korea
| | - G J King
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - B R Ko
- Korea University, Seoul 136-713, South Korea
| | - H Koch
- Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague, Czech Republic
| | - Yu G Kolomensky
- Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana, Slovenia
- University of Maribor, 2000 Maribor, Slovenia
| | - D Kovalskyi
- University of California at Santa Barbara, Santa Barbara, California 93106, USA
| | - R Kowalewski
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - E A Kravchenko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich, Germany
| | - R Kumar
- Punjab Agricultural University, Ludhiana 141004, India
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - Y-J Kwon
- Yonsei University, Seoul 120-749, South Korea
| | - H M Lacker
- Humboldt-Universität zu Berlin, Institut für Physik, D-12489 Berlin, Germany
| | - G D Lafferty
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - L Lanceri
- INFN Sezione di Trieste, I-34127 Trieste, Italy
- Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy
| | - D J Lange
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A J Lankford
- University of California at Irvine, Irvine, California 92697, USA
| | - T E Latham
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - T Leddig
- Universität Rostock, D-18051 Rostock, Germany
| | - F Le Diberder
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - D H Lee
- Korea University, Seoul 136-713, South Korea
| | - I S Lee
- Hanyang University, Seoul 133-791, South Korea
| | - M J Lee
- Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
| | - J P Lees
- Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France
| | - D W G S Leith
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - Ph Leruste
- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
| | - M J Lewczuk
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - P Lewis
- University of Hawaii, Honolulu, Hawaii 96822, USA
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036, India
| | - W S Lockman
- University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
| | - O Long
- University of California at Riverside, Riverside, California 92521, USA
| | - D Lopes Pegna
- Princeton University, Princeton, New Jersey 08544, USA
| | - J M LoSecco
- University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - X C Lou
- University of Texas at Dallas, Richardson, Texas 75083, USA
| | - T Lueck
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - S Luitz
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - P Lukin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - E Luppi
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy
| | - A Lusiani
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Scuola Normale Superiore di Pisa, I-56127 Pisa, Italy
| | - V Luth
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - A M Lutz
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - G Lynch
- Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
| | - D B MacFarlane
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - B Malaescu
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - U Mallik
- University of Iowa, Iowa City, Iowa 52242, USA
| | - E Manoni
- INFN Sezione di Perugia, I-06123 Perugia, Italy
| | - G Marchiori
- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
| | - M Margoni
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy
| | - S Martellotti
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | | | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032, Japan
| | - T S Mattison
- University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - J A McKenna
- University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - B T Meadows
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | | | - T S Miyashita
- California Institute of Technology, Pasadena, California 91125, USA
| | - H Miyata
- Niigata University, Niigata 950-2181, Japan
| | - R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow 117218, Russian Federation
- Moscow Physical Engineering Institute, Moscow 115409, Russian Federation
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005, India
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München, Germany
- Excellence Cluster Universe, Technische Universität München, 85748 Garching, Germany
| | - M R Monge
- INFN Sezione di Genova, I-16146 Genova, Italy
- Dipartimento di Fisica, Università di Genova, I-16146 Genova, Italy
| | - H K Moon
- Korea University, Seoul 136-713, South Korea
| | - M Morandin
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - D R Muller
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - R Mussa
- INFN Sezione di Torino, I-10125 Torino, Italy
| | - E Nakano
- Osaka City University, Osaka 558-8585, Japan
| | - H Nakazawa
- National Central University, Chung-li 32054, Taiwan
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana, Slovenia
| | - M Nayak
- Indian Institute of Technology Madras, Chennai 600036, India
| | - H Neal
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - N Neri
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - N K Nisar
- Tata Institute of Fundamental Research, Mumbai 400005, India
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - I M Nugent
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - B Oberhof
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - J Ocariz
- Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Université Pierre et Marie Curie-Paris6, Université Denis Diderot-Paris7, F-75252 Paris, France
| | - S Ogawa
- Toho University, Funabashi 274-8510, Japan
| | - S Okuno
- Kanagawa University, Yokohama 221-8686, Japan
| | - E O Olaiya
- Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
| | - J Olsen
- Princeton University, Princeton, New Jersey 08544, USA
| | - P Ongmongkolkul
- California Institute of Technology, Pasadena, California 91125, USA
| | - G Onorato
- INFN Sezione di Napoli, I-80126 Napoli, Italy
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy
| | - A P Onuchin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
- Novosibirsk State Technical University, Novosibirsk 630092, Russian Federation
| | - Y Onuki
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - W Ostrowicz
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342, Poland
| | - A Oyanguren
- IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain
| | - G Pakhlova
- Institute for Theoretical and Experimental Physics, Moscow 117218, Russian Federation
- Moscow Institute of Physics and Technology, Moscow Region 141700, Russian Federation
| | - P Pakhlov
- Institute for Theoretical and Experimental Physics, Moscow 117218, Russian Federation
- Moscow Physical Engineering Institute, Moscow 115409, Russian Federation
| | - A Palano
- INFN Sezione di Bari, I-70126 Bari, Italy
- Dipartimento di Fisica, Università di Bari, I-70126 Bari, Italy
| | - B Pal
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - F Palombo
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy
| | - Y Pan
- University of Wisconsin, Madison, Wisconsin 53706, USA
| | - W Panduro Vazquez
- University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
| | - E Paoloni
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - C W Park
- Sungkyunkwan University, Suwon 440-746, South Korea
| | - H Park
- Kyungpook National University, Daegu 702-701, South Korea
| | - S Passaggio
- INFN Sezione di Genova, I-16146 Genova, Italy
| | - P M Patel
- McGill University, Montréal, Québec H3A 2T8, Canada
| | - C Patrignani
- INFN Sezione di Genova, I-16146 Genova, Italy
- Dipartimento di Fisica, Università di Genova, I-16146 Genova, Italy
| | - P Patteri
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - D J Payne
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - T K Pedlar
- Luther College, Decorah, Iowa 52101, USA
| | - D R Peimer
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel
| | - I M Peruzzi
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | | | - R Pestotnik
- J. Stefan Institute, 1000 Ljubljana, Slovenia
| | - M Petrič
- J. Stefan Institute, 1000 Ljubljana, Slovenia
| | - M Piccolo
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | | | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - A Pilloni
- INFN Sezione di Roma, I-00185 Roma, Italy
- Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy
| | - G Piredda
- INFN Sezione di Roma, I-00185 Roma, Italy
| | - S Playfer
- University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
| | - V Poireau
- Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France
| | - F C Porter
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Posocco
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - V Prasad
- Indian Institute of Technology Guwahati, Guwahati, Assam 781 039, India
| | - S Prell
- Iowa State University, Ames, Iowa 50011-3160, USA
| | - R Prepost
- University of Wisconsin, Madison, Wisconsin 53706, USA
| | - E M T Puccio
- Stanford University, Stanford, California 94305-4060, USA
| | - T Pulliam
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - M V Purohit
- University of South Carolina, Columbia, South Carolina 29208, USA
| | | | - M Rama
- INFN Sezione di Pisa, I-56127 Pisa, Italy
| | | | - B N Ratcliff
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - G Raven
- NIKHEF, National Institute for Nuclear Physics and High Energy Physics, NL-1009 DB Amsterdam, Netherlands
| | - E Ribežl
- J. Stefan Institute, 1000 Ljubljana, Slovenia
| | - J D Richman
- University of California at Santa Barbara, Santa Barbara, California 93106, USA
| | - J L Ritchie
- University of Texas at Austin, Austin, Texas 78712, USA
| | - G Rizzo
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - D A Roberts
- University of Maryland, College Park, Maryland 20742, USA
| | | | - M Röhrken
- California Institute of Technology, Pasadena, California 91125, USA
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany
| | - J M Roney
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - A Roodman
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - A Rossi
- INFN Sezione di Perugia, I-06123 Perugia, Italy
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany
| | - M Rotondo
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - P Roudeau
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - R Sacco
- Queen Mary, University of London, London E1 4NS, United Kingdom
| | - Y Sakai
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005, India
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - V Santoro
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
| | - T Sanuki
- Tohoku University, Sendai 980-8578, Japan
| | - Y Sato
- Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | - R H Schindler
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao, Spain
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain
| | - T Schroeder
- Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany
| | - K R Schubert
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - B A Schumm
- University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050, Austria
| | - A J Schwartz
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | | | - C Sciacca
- INFN Sezione di Napoli, I-80126 Napoli, Italy
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy
| | - A Seiden
- University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
| | - S J Sekula
- Southern Methodist University, Dallas, Texas 75275, USA
| | - K Senyo
- Yamagata University, Yamagata 990-8560, Japan
| | - O Seon
- Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - S I Serednyakov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010, Australia
| | - M Shapkin
- Institute for High Energy Physics, Protvino 142281, Russian Federation
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - C P Shen
- Beihang University, Beijing 100191, China
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - M Simard
- Université de Montréal, Physique des Particules, Montréal, Québec H3C 3J7, Canada
| | - G Simi
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München, Germany
- Excellence Cluster Universe, Technische Universität München, 85748 Garching, Germany
| | - F Simonetto
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy
| | - Yu I Skovpen
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - A J S Smith
- Princeton University, Princeton, New Jersey 08544, USA
| | - J G Smith
- University of Colorado, Boulder, Colorado 80309, USA
| | - A Snyder
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - R Y So
- University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - R J Sobie
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - A Soffer
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978, Israel
| | - Y-S Sohn
- Yonsei University, Seoul 120-749, South Korea
| | - M D Sokoloff
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281, Russian Federation
| | - E P Solodov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - E Solovieva
- Institute for Theoretical and Experimental Physics, Moscow 117218, Russian Federation
| | - B Spaan
- Technische Universität Dortmund, Fakultät Physik, D-44221 Dortmund, Germany
| | - S M Spanier
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana, Slovenia
| | - A Stocchi
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - R Stroili
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy
| | - B Stugu
- University of Bergen, Institute of Physics, N-5007 Bergen, Norway
| | - D Su
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - M K Sullivan
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | | | - K Sumisawa
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - D J Summers
- University of Mississippi, University, Mississippi 38677, USA
| | - L Sun
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - U Tamponi
- INFN Sezione di Torino, I-10125 Torino, Italy
- Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy
| | - P Taras
- Université de Montréal, Physique des Particules, Montréal, Québec H3C 3J7, Canada
| | - N Tasneem
- University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - Y Teramoto
- Osaka City University, Osaka 558-8585, Japan
| | - V Tisserand
- Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France
| | - K Yu Todyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - W H Toki
- Colorado State University, Fort Collins, Colorado 80523, USA
| | - C Touramanis
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - K Trabelsi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Tsuboyama
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - T Uglov
- Institute for Theoretical and Experimental Physics, Moscow 117218, Russian Federation
- Moscow Institute of Physics and Technology, Moscow Region 141700, Russian Federation
| | - Y Unno
- Hanyang University, Seoul 133-791, South Korea
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193, Japan
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - U Uwer
- Universität Heidelberg, Physikalisches Institut, D-69120 Heidelberg, Germany
| | - S E Vahsen
- University of Hawaii, Honolulu, Hawaii 96822, USA
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao, Spain
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München, Germany
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822, USA
| | - G Vasseur
- CEA, Irfu, SPP, Centre de Saclay, F-91191 Gif-sur-Yvette, France
| | - J Va'vra
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - M Verderi
- Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - L Vitale
- INFN Sezione di Trieste, I-34127 Trieste, Italy
- Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - C Voß
- Universität Rostock, D-18051 Rostock, Germany
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen, Germany
| | - S R Wagner
- University of Colorado, Boulder, Colorado 80309, USA
| | - R Waldi
- Universität Rostock, D-18051 Rostock, Germany
| | - J J Walsh
- INFN Sezione di Pisa, I-56127 Pisa, Italy
| | - C H Wang
- National United University, Miao Li 36003, Taiwan
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Y Watanabe
- Kanagawa University, Yokohama 221-8686, Japan
| | - C A West
- University of California at Santa Barbara, Santa Barbara, California 93106, USA
| | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - F F Wilson
- Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
| | - J R Wilson
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - W J Wisniewski
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - E Won
- Korea University, Seoul 136-713, South Korea
| | - G Wormser
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex, France
| | - D M Wright
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - S L Wu
- University of Wisconsin, Madison, Wisconsin 53706, USA
| | - H W Wulsin
- SLAC National Accelerator Laboratory, Stanford, California 94309, USA
| | - H Yamamoto
- Tohoku University, Sendai 980-8578, Japan
| | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - S Yashchenko
- Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Y Yusa
- Niigata University, Niigata 950-2181, Japan
| | - A Zallo
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - C C Zhang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026, China
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana, Slovenia
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Jaegle I, Adachi I, Aihara H, Al Said S, Asner DM, Aushev T, Ayad R, Bakich AM, Bansal V, Barrett M, Bhuyan B, Bozek A, Bračko M, Browder TE, Červenkov D, Chang MC, Cheon BG, Chilikin K, Cho K, Chobanova V, Choi SK, Choi Y, Cinabro D, Dalseno J, Doležal Z, Drásal Z, Drutskoy A, Dutta D, Eidelman S, Epifanov D, Farhat H, Fast JE, Ferber T, Frost O, Gaur V, Gabyshev N, Ganguly S, Garmash A, Getzkow D, Gillard R, Goh YM, Golob B, Grzymkowska O, Hayasaka K, Hayashii H, He XH, Hedges M, Hou WS, Iijima T, Inami K, Ishikawa A, Iwasaki Y, Julius T, Kang KH, Kato E, Kawasaki T, Kim DY, Kim JB, Kim JH, Kim SH, Kinoshita K, Ko BR, Kodyš P, Korpar S, Križan P, Krokovny P, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Lewis P, Li Gioi L, Libby J, Liventsev D, Matvienko D, Miyata H, Mizuk R, Mohanty GB, Moll A, Mussa R, Nakano E, Nakao M, Nisar NK, Nishida S, Ogawa S, Pakhlov P, Pakhlova G, Park H, Pedlar TK, Pesántez L, Petrič M, Piilonen LE, Ritter M, Rostomyan A, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schneider O, Schnell G, Schwanda C, Semmler D, Senyo K, Seon O, Seong I, Sevior ME, Shebalin V, Shibata TA, Shiu JG, Shwartz B, Simon F, Sinha R, Sohn YS, Starič M, Sumihama M, Sumisawa K, Tamponi U, Tatishvili G, Teramoto Y, Thorne F, Uchida M, Uehara S, Unno Y, Uno S, Vahsen SE, Van Hulse C, Vanhoefer P, Varner G, Vinokurova A, Wagner MN, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe M, Watanabe Y, Williams KM, Won E, Yamaoka J, Yashchenko S, Yook Y, Yusa Y, Zhilich V, Zhulanov V, Zupanc A. Search for the dark photon and the dark Higgs boson at belle. Phys Rev Lett 2015; 114:211801. [PMID: 26066427 DOI: 10.1103/physrevlett.114.211801] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Indexed: 06/04/2023]
Abstract
The dark photon A^{'} and the dark Higgs boson h^{'} are hypothetical constituents featured in a number of recently proposed dark sector models. Assuming prompt decays of both dark particles, we search for their production in the so-called Higgstrahlung channel e^{+}e^{-}→A^{'}h^{'}, with h^{'}→A^{'}A^{'}. We investigate ten exclusive final states with A^{'}→e^{+}e^{-}, μ^{+}μ^{-}, or π^{+}π^{-} in the mass ranges 0.1 GeV/c^{2} <m_{A^{'}}<3.5 GeV/c^{2} and 0.2 GeV/c^{2} <m_{h^{'}}<10.5 GeV/c^{2}. We also investigate three inclusive final states 2(e^{+}e^{-})X, 2(μ^{+}μ^{-})X, and (e^{+}e^{-})(μ^{+}μ^{-})X, where X denotes a dark photon candidate detected via missing mass, in the mass ranges 1.1 GeV/c^{2} <m_{A^{'}}<3.5 GeV/c^{2} and 2.2 GeV/c^{2} <m_{h^{'}}<10.5 GeV/c^{2}. Using the entire 977 fb^{-1} data set collected by Belle, we observe no significant signal. We obtain individual and combined 90% credibility level upper limits on the branching fraction times the Born cross section, B×σ_{Born}, on the Born cross section σ_{Born}, and on the dark photon coupling to the dark Higgs boson times the kinetic mixing between the standard model photon and the dark photon, α_{D}×ε^{2}. These limits improve upon and cover wider mass ranges than previous experiments. The limits from the final states 3(π^{+}π^{-}) and 2(e^{+}e^{-})X are the first placed by any experiment. For α_{D} equal to 1/137, m_{h^{'}}< 8 GeV/c^{2}, and m_{A^{'}}<1 GeV/c^{2}, we exclude values of the mixing parameter ε above ∼8×10^{-4}.
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Affiliation(s)
- I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - I Adachi
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - S Al Said
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Aushev
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - A M Bakich
- School of Physics, University of Sydney, NSW 2006
| | - V Bansal
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - M Barrett
- University of Hawaii, Honolulu, Hawaii 96822
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - M-C Chang
- Department of Physics, Fu Jen Catholic University, Taipei 24205
| | | | - K Chilikin
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - S-K Choi
- Gyeongsang National University, Chinju 660-701
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - A Drutskoy
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - D Dutta
- Indian Institute of Technology Guwahati, Assam 781039
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - O Frost
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - S Ganguly
- Wayne State University, Detroit, Michigan 48202
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Getzkow
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - O Grzymkowska
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - X H He
- Peking University, Beijing 100871
| | - M Hedges
- University of Hawaii, Honolulu, Hawaii 96822
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | | | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - K H Kang
- Kyungpook National University, Daegu 702-701
| | - E Kato
- Tohoku University, Sendai 980-8578
| | | | - D Y Kim
- Soongsil University, Seoul 156-743
| | - J B Kim
- Korea University, Seoul 136-713
| | - J H Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - B R Ko
- Korea University, Seoul 136-713
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - I S Lee
- Hanyang University, Seoul 133-791
| | - P Lewis
- University of Hawaii, Honolulu, Hawaii 96822
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - N K Nisar
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Nishida
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - P Pakhlov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - H Park
- Kyungpook National University, Daegu 702-701
| | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - M Ritter
- Max-Planck-Institut für Physik, 80805 München
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - Y Sakai
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sanuki
- Tohoku University, Sendai 980-8578
| | - Y Sato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - D Semmler
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - O Seon
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - I Seong
- University of Hawaii, Honolulu, Hawaii 96822
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - R Sinha
- Institute of Mathematical Sciences, Chennai 600113
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | | | - K Sumisawa
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | - G Tatishvili
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - F Thorne
- Institute of High Energy Physics, Vienna 1050
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - S Uehara
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S E Vahsen
- University of Hawaii, Honolulu, Hawaii 96822
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - X L Wang
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | | | | | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - Y Yook
- Yonsei University, Seoul 120-749
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
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Pesántez L, Urquijo P, Dingfelder J, Abdesselam A, Adachi I, Adamczyk K, Aihara H, Al Said S, Arinstein K, Asner DM, Aulchenko V, Aushev T, Ayad R, Bahinipati S, Bakich AM, Bansal V, Barberio E, Bhardwaj V, Bhuyan B, Bobrov A, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho K, Chobanova V, Choi Y, Cinabro D, Dalseno J, Doležal Z, Drásal Z, Drutskoy A, Dutta D, Eidelman S, Farhat H, Fast JE, Ferber T, Frost O, Gaur V, Gabyshev N, Ganguly S, Garmash A, Getzkow D, Gillard R, Goh YM, Golob B, Haba J, Hasenbusch J, Hayashii H, He XH, Heller A, Horiguchi T, Hou WS, Huschle M, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki Y, Jaegle I, Joffe D, Julius T, Kang KH, Kato E, Kawasaki T, Kiesling C, Kim DY, Kim JB, Kim JH, Kim KT, Kim MJ, Kim SH, Kim YJ, Ko BR, Kodyš P, Korpar S, Križan P, Krokovny P, Kronenbitter B, Kuhr T, Kumita T, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Li Y, Li Gioi L, Libby J, Liventsev D, Lukin P, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moll A, Moon HK, Nakano E, Nakao M, Nanut T, Natkaniec Z, Nayak M, Ng C, Nisar NK, Nishida S, Ogawa S, Okuno S, Olsen SL, Oswald C, Pakhlov P, Pakhlova G, Park CW, Park H, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Ribežl E, Ritter M, Rostomyan A, Rozanska M, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schneider O, Schnell G, Schwanda C, Schwartz AJ, Senyo K, Seon O, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Sibidanov A, Simon F, Sohn YS, Sokolov A, Solovieva E, Starič M, Steder M, Sumiyoshi T, Tamponi U, Taniguchi N, Tatishvili G, Teramoto Y, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Usov Y, Van Hulse C, Vanhoefer P, Varner G, Vinokurova A, Vorobyev V, Wagner MN, Wang B, Wang CH, Wang MZ, Wang P, Watanabe Y, Williams KM, Won E, Yamaoka J, Yashchenko S, Yook Y, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. Measurement of the Direct CP Asymmetry in B¯→X(s+dγ) Decays with a Lepton Tag. Phys Rev Lett 2015; 114:151601. [PMID: 25933306 DOI: 10.1103/physrevlett.114.151601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Indexed: 06/04/2023]
Abstract
We report the measurement of the direct CP asymmetry in the radiative B¯→X(s+dγ) decay using a data sample of (772 ± 11)×10(6) BB[over ¯] pairs collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The CP asymmetry is measured as a function of the photon energy threshold. For Eγ*≥2.1 GeV, where Eγ* is the photon energy in the center-of-mass frame, we obtain A(CP)(B¯→X(s+dγ))=(2.2±3.9±0.9)%, consistent with the standard model prediction.
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Affiliation(s)
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | | | - A Abdesselam
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - I Adachi
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Adamczyk
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - S Al Said
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - K Arinstein
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Aulchenko
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - T Aushev
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - S Bahinipati
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - V Bansal
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - E Barberio
- School of Physics, University of Melbourne, Victoria 3010
| | | | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - A Bobrov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Bondar
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - R Chistov
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - A Drutskoy
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - D Dutta
- Indian Institute of Technology Guwahati, Assam 781039
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - O Frost
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - S Ganguly
- Wayne State University, Detroit, Michigan 48202
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Getzkow
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - J Haba
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | | | | | - X H He
- Peking University, Beijing 100871
| | - A Heller
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | | | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - M Huschle
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | | | - R Itoh
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Joffe
- Kennesaw State University, Kennesaw, Georgia 30144
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - K H Kang
- Kyungpook National University, Daegu 702-701
| | - E Kato
- Tohoku University, Sendai 980-8578
| | | | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - J B Kim
- Korea University, Seoul 136-713
| | - J H Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K T Kim
- Korea University, Seoul 136-713
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - B R Ko
- Korea University, Seoul 136-713
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - B Kronenbitter
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - T Kuhr
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - T Kumita
- Tokyo Metropolitan University, Tokyo 192-0397
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - I S Lee
- Hanyang University, Seoul 133-791
| | - Y Li
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Lukin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | | | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - Z Natkaniec
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Nayak
- Indian Institute of Technology Madras, Chennai 600036
| | - C Ng
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - N K Nisar
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Nishida
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - S Okuno
- Kanagawa University, Yokohama 221-8686
| | - S L Olsen
- Seoul National University, Seoul 151-742
| | | | - P Pakhlov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - C W Park
- Sungkyunkwan University, Suwon 440-746
| | - H Park
- Kyungpook National University, Daegu 702-701
| | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Ribežl
- J. Stefan Institute, 1000 Ljubljana
| | - M Ritter
- Max-Planck-Institut für Physik, 80805 München
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - M Rozanska
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - Y Sakai
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sanuki
- Tohoku University, Sendai 980-8578
| | - Y Sato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - A J Schwartz
- University of Cincinnati, Cincinnati, Ohio 45221
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - O Seon
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - C P Shen
- Beihang University, Beijing 100191
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Sibidanov
- School of Physics, University of Sydney, New South Wales 2006
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - E Solovieva
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - M Steder
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
- University of Torino, 10124 Torino
| | - N Taniguchi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - G Tatishvili
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - K Trabelsi
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - T Uglov
- Institute for Theoretical and Experimental Physics, Moscow 117218
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- The Graduate University for Advanced Studies, Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - B Wang
- University of Cincinnati, Cincinnati, Ohio 45221
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | | | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - Y Yook
- Yonsei University, Seoul 120-749
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
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42
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He XH, Shen CP, Yuan CZ, Ban Y, Abdesselam A, Adachi I, Aihara H, Asner DM, Aulchenko V, Aushev T, Ayad R, Bahinipati S, Bakich AM, Bansal V, Bhuyan B, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Cervenkov D, Chang P, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho K, Chobanova V, Choi SK, Choi Y, Cinabro D, Dalseno J, Danilov M, Doležal Z, Drásal Z, Drutskoy A, Eidelman S, Farhat H, Fast JE, Ferber T, Gaur V, Gabyshev N, Ganguly S, Garmash A, Gillard R, Glattauer R, Goh YM, Grzymkowska O, Haba J, Hayasaka K, Hayashii H, Hou WS, Iijima T, Ishikawa A, Itoh R, Iwasaki Y, Jaegle I, Joo KK, Julius T, Kato E, Kawasaki T, Kim DY, Kim MJ, Kim YJ, Kinoshita K, Ko BR, Kodyš P, Korpar S, Križan P, Krokovny P, Kumita T, Kuzmin A, Kwon YJ, Lange JS, Li Y, Libby J, Liventsev D, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moll A, Mussa R, Nakano E, Nakao M, Nakazawa H, Nanut T, Natkaniec Z, Nedelkovska E, Nisar NK, Nishida S, Ogawa S, Okuno S, Pakhlov P, Pakhlova G, Park H, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Ritter M, Rostomyan A, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schneider O, Schnell G, Schwanda C, Semmler D, Senyo K, Sevior ME, Shebalin V, Shibata TA, Shiu JG, Shwartz B, Sibidanov A, Simon F, Sohn YS, Sokolov A, Solovieva E, Starič M, Steder M, Sumisawa K, Sumiyoshi T, Tamponi U, Tanida K, Tatishvili G, Teramoto Y, Thorne F, Trabelsi K, Uchida M, Uehara S, Uglov T, Unno Y, Uno S, Urquijo P, Vahsen SE, Van Hulse C, Vanhoefer P, Varner G, Vinokurova A, Vorobyev V, Wagner MN, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe M, Watanabe Y, Wehle S, Williams KM, Won E, Yamaoka J, Yashchenko S, Yook Y, Yusa Y, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. Observation of e+e- → π+π-π(0)(χbJ) and Search for X(b) → ωϒ(1S) at sqrt[s] = 10.867 GeV. Phys Rev Lett 2014; 113:142001. [PMID: 25325633 DOI: 10.1103/physrevlett.113.142001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Indexed: 06/04/2023]
Abstract
The e(+)e(-) → π(+)π(-)π(0)χ(bJ) (J = 0,1,2) processes are studied using a 118 fb(-1) data sample acquired with the Belle detector at a center-of-mass energy of 10.867 GeV. Unambiguous π(+)π(-)π(0)χ(bJ) (J = 1,2), ωχ(b1) signals are observed, and indication for ωχ(b2) is seen, both for the first time, and the corresponding cross section measurements are presented. No significant π(+)π(-)π(0)χ(b0) or ωχ(b0) signals are observed, and 90% confidence level upper limits on the cross sections for these two processes are obtained. In the π(+)π(-)π(0) invariant mass spectrum, significant non-ω signals are also observed. We search for the X(3872)-like state (named X(b)) decaying into ωϒ(1S); no significant signal is observed with a mass between 10.55 and 10.65 GeV/c(2).
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Affiliation(s)
- X H He
- Peking University, Beijing 100871
| | - C P Shen
- Beihang University, Beijing 100191
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y Ban
- Peking University, Beijing 100871
| | - A Abdesselam
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - I Adachi
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Aulchenko
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - T Aushev
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - S Bahinipati
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - V Bansal
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - A Bondar
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana and University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Cervenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - P Chang
- Department of Physics, National Taiwan University, Taipei 10617
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - R Chistov
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - S-K Choi
- Gyeongsang National University, Chinju 660-701
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München and Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - M Danilov
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - A Drutskoy
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - S Ganguly
- Wayne State University, Detroit, Michigan 48202
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - R Glattauer
- Institute of High Energy Physics, Vienna 1050
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - O Grzymkowska
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - J Haba
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602 and Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - R Itoh
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - K K Joo
- Chonnam National University, Kwangju 660-701
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - E Kato
- Tohoku University, Sendai 980-8578
| | | | - D Y Kim
- Soongsil University, Seoul 156-743
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - B R Ko
- Korea University, Seoul 136-713
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana and University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana and Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - T Kumita
- Tokyo Metropolitan University, Tokyo 192-0397
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - Y Li
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München and Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Nakazawa
- National Central University, Chung-li 32054
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - Z Natkaniec
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | | | - N K Nisar
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Nishida
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - S Okuno
- Kanagawa University, Yokohama 221-8686
| | - P Pakhlov
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - H Park
- Kyungpook National University, Daegu 702-701
| | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - M Ritter
- Max-Planck-Institut für Physik, 80805 München
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - Y Sakai
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | | | - T Sanuki
- Tohoku University, Sendai 980-8578
| | - Y Sato
- Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao and IKERBASQUE, Basque Foundation for Science, 48011 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - D Semmler
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Sibidanov
- School of Physics, University of Sydney, New South Wales 2006
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München and Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - E Solovieva
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - M Steder
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - K Sumisawa
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino and University of Torino, 10124 Torino
| | - K Tanida
- Seoul National University, Seoul 151-742
| | - G Tatishvili
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - F Thorne
- Institute of High Energy Physics, Vienna 1050
| | - K Trabelsi
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - S Uehara
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Uglov
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | | | - S E Vahsen
- University of Hawaii, Honolulu, Hawaii 96822
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - X L Wang
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | | | | | - S Wehle
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - J Yamaoka
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - Y Yook
- Yonsei University, Seoul 120-749
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- J. Stefan Institute, 1000 Ljubljana
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Zupanc A, Bartel C, Gabyshev N, Adachi I, Aihara H, Asner DM, Aulchenko V, Aushev T, Bakich AM, Bala A, Belous K, Bhuyan B, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chang MC, Chekelian V, Cheon BG, Chilikin K, Chistov R, Cho IS, Cho K, Chobanova V, Choi SK, Choi Y, Cinabro D, Dalseno J, Danilov M, Doležal Z, Drásal Z, Dutta D, Dutta K, Eidelman S, Epifanov D, Farhat H, Fast JE, Feindt M, Ferber T, Gaur V, Ganguly S, Garmash A, Gillard R, Glattauer R, Goh YM, Golob B, Haba J, Hayasaka K, Hayashii H, He XH, Hoshi Y, Hou WS, Huschle M, Hyun HJ, Iijima T, Ishikawa A, Itoh R, Iwasaki Y, Iwashita T, Jaegle I, Julius T, Kang JH, Kato E, Kato Y, Kawasaki T, Kichimi H, Kim DY, Kim HJ, Kim JB, Kim JH, Kim MJ, Kim YJ, Kinoshita K, Klucar J, Ko BR, Kodyš P, Korpar S, Križan P, Krokovny P, Kronenbitter B, Kuhr T, Kumita T, Kuzmin A, Kwon YJ, Lee SH, Li J, Li Y, Libby J, Liu C, Liu Y, Liu ZQ, Liventsev D, MacNaughton J, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moll A, Mussa R, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nayak M, Nedelkovska E, Niiyama M, Nisar NK, Nishida S, Nitoh O, Ogawa S, Olsen SL, Ostrowicz W, Pakhlov P, Pakhlova G, Park CW, Park H, Park HK, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Ritter M, Röhrken M, Rostomyan A, Ryu S, Sahoo H, Saito T, Sakai Y, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Semmler D, Senyo K, Seon O, Sevior ME, Shapkin M, Shen CP, Shibata TA, Shiu JG, Shwartz B, Sibidanov A, Simon F, Sohn YS, Sokolov A, Solovieva E, Stanič S, Starič M, Steder M, Sumiyoshi T, Tamponi U, Tanida K, Tatishvili G, Teramoto Y, Trabelsi K, Uchida M, Uehara S, Unno Y, Uno S, Urquijo P, Usov Y, Van Hulse C, Vanhoefer P, Varner G, Varvell KE, Vinokurova A, Vorobyev V, Wagner MN, Wang CH, Wang P, Wang XL, Watanabe M, Watanabe Y, Williams KM, Won E, Yamamoto H, Yamashita Y, Yashchenko S, Yook Y, Zhang ZP, Zhilich V, Zhulanov V. Measurement of the branching fraction B(Λc+ → pK-π+). Phys Rev Lett 2014; 113:042002. [PMID: 25105609 DOI: 10.1103/physrevlett.113.042002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Indexed: 06/03/2023]
Abstract
We present the first model-independent measurement of the absolute branching fraction of the Λ(c)(+) → pK(-)π(+) decay using a data sample of 978 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The number of Λ(c)(+) baryons is determined by reconstructing the recoiling D((*)-) pπ(+) system in events of the type e(+)e(-) → D((*)-) pπ(+)Λ(c)(+). The branching fraction is measured to be B(Λ(c)(+) → pK(-)π(+)) = (6.84 ± 0.24(-0.27)(+0.21))%, where the first and second uncertainties are statistical and systematic, respectively.
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Affiliation(s)
- A Zupanc
- J. Stefan Institute, 1000 Ljubljana
| | - C Bartel
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - I Adachi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Aulchenko
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - T Aushev
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - A Bala
- Panjab University, Chandigarh 160014
| | - K Belous
- Institute for High Energy Physics, Protvino 142281
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - A Bondar
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana and University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - M-C Chang
- Department of Physics, Fu Jen Catholic University, Taipei 24205
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | | | - K Chilikin
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - R Chistov
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - I-S Cho
- Yonsei University, Seoul 120-749
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - S-K Choi
- Gyeongsang National University, Chinju 660-701
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München and Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - M Danilov
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - D Dutta
- Indian Institute of Technology Guwahati, Assam 781039
| | - K Dutta
- Indian Institute of Technology Guwahati, Assam 781039
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - M Feindt
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Ganguly
- Wayne State University, Detroit, Michigan 48202
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - R Glattauer
- Institute of High Energy Physics, Vienna 1050
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana and Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - J Haba
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - X H He
- Peking University, Beijing 100871
| | - Y Hoshi
- Tohoku Gakuin University, Tagajo 985-8537
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - M Huschle
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - H J Hyun
- Kyungpook National University, Daegu 702-701
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602 and Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - R Itoh
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Iwashita
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - J H Kang
- Yonsei University, Seoul 120-749
| | - E Kato
- Tohoku University, Sendai 980-8578
| | - Y Kato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | | | - H Kichimi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - H J Kim
- Kyungpook National University, Daegu 702-701
| | - J B Kim
- Korea University, Seoul 136-713
| | - J H Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - J Klucar
- J. Stefan Institute, 1000 Ljubljana
| | - B R Ko
- Korea University, Seoul 136-713
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana and University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana and Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - B Kronenbitter
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - T Kuhr
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - T Kumita
- Tokyo Metropolitan University, Tokyo 192-0397
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - S-H Lee
- Korea University, Seoul 136-713
| | - J Li
- Seoul National University, Seoul 151-742
| | - Y Li
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - C Liu
- University of Science and Technology of China, Hefei 230026
| | - Y Liu
- University of Cincinnati, Cincinnati, Ohio 45221
| | - Z Q Liu
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - J MacNaughton
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - A Moll
- Max-Planck-Institut für Physik, 80805 München and Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Nakazawa
- National Central University, Chung-li 32054
| | - Z Natkaniec
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Nayak
- Indian Institute of Technology Madras, Chennai 600036
| | | | | | - N K Nisar
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Nishida
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - O Nitoh
- Tokyo University of Agriculture and Technology, Tokyo 184-8588
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - S L Olsen
- Seoul National University, Seoul 151-742
| | - W Ostrowicz
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - P Pakhlov
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - C W Park
- Sungkyunkwan University, Suwon 440-746
| | - H Park
- Kyungpook National University, Daegu 702-701
| | - H K Park
- Kyungpook National University, Daegu 702-701
| | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - M Ritter
- Max-Planck-Institut für Physik, 80805 München
| | - M Röhrken
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Ryu
- Seoul National University, Seoul 151-742
| | - H Sahoo
- University of Hawaii, Honolulu, Hawaii 96822
| | - T Saito
- Tohoku University, Sendai 980-8578
| | - Y Sakai
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | | | - T Sanuki
- Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao and IKERBASQUE, Basque Foundation for Science, 48011 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - D Semmler
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - O Seon
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - M Shapkin
- Institute for High Energy Physics, Protvino 142281
| | - C P Shen
- Beihang University, Beijing 100191
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Sibidanov
- School of Physics, University of Sydney, New South Wales 2006
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München and Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - E Solovieva
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - S Stanič
- University of Nova Gorica, 5000 Nova Gorica
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - M Steder
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino and University of Torino, 10124 Torino
| | - K Tanida
- Seoul National University, Seoul 151-742
| | - G Tatishvili
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - K Trabelsi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - S Uehara
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | | | - Y Usov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - K E Varvell
- School of Physics, University of Sydney, New South Wales 2006
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Wang
- National United University, Miao Li 36003
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - X L Wang
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | | | | | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | | | | | | | - Y Yook
- Yonsei University, Seoul 120-749
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
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Wong C, Kumar SS, Graham GG, Begg EJ, Chin PKL, Brett J, Ray JE, Marriott DJE, Williams KM, Day RO. Comparing dose prediction software used to manage gentamicin dosing. Intern Med J 2014; 43:519-25. [PMID: 23279297 DOI: 10.1111/imj.12067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 11/21/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND Current Australian guidelines recommend initiating directed therapy of gentamicin if administration exceeds 48 h. Directed doses of gentamicin require the monitoring of plasma concentrations of gentamicin to determine the 24-h area under the time course of plasma gentamicin concentrations (AUC) and a dosage prediction program, for example TCIWorks or Aladdin. However, doses calculated by such programs have not been compared with an established program. AIM To compare the directed dosage of gentamicin calculated by TCIWorks, Aladdin and an Excel-based program, with an established program, Abbottbase. METHODS Peak and trough plasma concentrations after the first and second administered doses of gentamicin were available from three patient groups (n = 20-23) with varying creatinine clearances (<40, 40-80, >80 mL/min). The directed dose needed to produce 24-h AUC values of 80 mg.h/L was calculated using each program. RESULTS There was a strong correlation between the directed doses predicted by each of the three programs compared with Abbottbase, following the first administered dose (r(2) > 0.97, P < 0.0001). The mean ratio (90% confidence intervals) of these directed doses of the gentamicin were: TCIWorks/Abbottbase 106% (105-107%), Aladdin/Abbottbase 102% (101-103%) and Excel/Abbottbase 108% (106-109%). The correlations and dose ratios were also similar when comparisons were made following the second administered dose. For each of the three renal function groups, all programs yielded similar directed doses. CONCLUSIONS The four programs used in the calculation of directed doses of gentamicin yielded similar results. Any would be suitable for use in clinical practice.
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Affiliation(s)
- C Wong
- St Vincent's Clinical School, St Vincent's Hospital and University of New South Wales, Sydney, New South Wales, Australia
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Savory LA, Griffin SJ, Williams KM, Prevost AT, Kinmonth AL, Wareham NJ, Simmons RK. Changes in diet, cardiovascular risk factors and modelled cardiovascular risk following diagnosis of diabetes: 1-year results from the ADDITION-Cambridge trial cohort. Diabet Med 2014; 31:148-55. [PMID: 24102972 PMCID: PMC4208684 DOI: 10.1111/dme.12316] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 08/05/2013] [Accepted: 09/04/2013] [Indexed: 02/03/2023]
Abstract
AIMS To describe change in self-reported diet and plasma vitamin C, and to examine associations between change in diet and cardiovascular disease risk factors and modelled 10-year cardiovascular disease risk in the year following diagnosis of Type 2 diabetes. METHODS Eight hundred and sixty-seven individuals with screen-detected diabetes underwent assessment of self-reported diet, plasma vitamin C, cardiovascular disease risk factors and modelled cardiovascular disease risk at baseline and 1 year (n = 736) in the ADDITION-Cambridge trial. Multivariable linear regression was used to quantify the association between change in diet and cardiovascular disease risk at 1 year, adjusting for change in physical activity and cardio-protective medication. RESULTS Participants reported significant reductions in energy, fat and sodium intake, and increases in fruit, vegetable and fibre intake over 1 year. The reduction in energy was equivalent to an average-sized chocolate bar; the increase in fruit was equal to one plum per day. There was a small increase in plasma vitamin C levels. Increases in fruit intake and plasma vitamin C were associated with small reductions in anthropometric and metabolic risk factors. Increased vegetable intake was associated with an increase in BMI and waist circumference. Reductions in fat, energy and sodium intake were associated with reduction in HbA1c , waist circumference and total cholesterol/modelled cardiovascular disease risk, respectively. CONCLUSIONS Improvements in dietary behaviour in this screen-detected population were associated with small reductions in cardiovascular disease risk, independently of change in cardio-protective medication and physical activity. Dietary change may have a role to play in the reduction of cardiovascular disease risk following diagnosis of diabetes.
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Affiliation(s)
- L A Savory
- MRC Epidemiology Unit, Cambridge Institute of Public HealthCambridge, UK
- East of England Multi-Professional Deanery, Cambridge Institute of Public HealthCambridge, UK
| | - S J Griffin
- MRC Epidemiology Unit, Cambridge Institute of Public HealthCambridge, UK
| | - K M Williams
- The Primary Care Unit, Cambridge Institute of Public HealthCambridge, UK
| | - A T Prevost
- The Primary Care Unit, Cambridge Institute of Public HealthCambridge, UK
- King’s College London, Department of Primary Care and Public Health SciencesLondon, UK
| | - A-L Kinmonth
- The Primary Care Unit, Cambridge Institute of Public HealthCambridge, UK
| | - N J Wareham
- MRC Epidemiology Unit, Cambridge Institute of Public HealthCambridge, UK
| | - R K Simmons
- MRC Epidemiology Unit, Cambridge Institute of Public HealthCambridge, UK
- Correspondence to: Rebecca Simmons. E-mail:
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Belous K, Shapkin M, Sokolov A, Adachi I, Aihara H, Asner DM, Aulchenko V, Bakich AM, Bala A, Bhuyan B, Bobrov A, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho K, Chobanova V, Choi Y, Cinabro D, Dalseno J, Doležal Z, Dutta D, Eidelman S, Epifanov D, Farhat H, Fast JE, Ferber T, Gaur V, Ganguly S, Garmash A, Gillard R, Goh YM, Golob B, Haba J, Hara T, Hayasaka K, Hayashii H, Hoshi Y, Hou WS, Iijima T, Inami K, Ishikawa A, Itoh R, Iwashita T, Jaegle I, Julius T, Kato E, Kichimi H, Kiesling C, Kim DY, Kim HJ, Kim JB, Kim MJ, Kim YJ, Kinoshita K, Ko BR, Kodyš P, Korpar S, Križan P, Krokovny P, Kuhr T, Kuzmin A, Kwon YJ, Lange JS, Lee SH, Libby J, Liventsev D, Lukin P, Matvienko D, Miyata H, Mizuk R, Mohanty GB, Mori T, Mussa R, Nagasaka Y, Nakano E, Nakao M, Nayak M, Nedelkovska E, Ng C, Nisar NK, Nishida S, Nitoh O, Ogawa S, Okuno S, Olsen SL, Ostrowicz W, Pakhlova G, Park CW, Park H, Park HK, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Ritter M, Röhrken M, Rostomyan A, Ryu S, Sahoo H, Saito T, Sakai Y, Sandilya S, Santel D, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Semmler D, Senyo K, Seon O, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Sibidanov A, Simon F, Sohn YS, Stanič S, Starič M, Steder M, Sumiyoshi T, Tamponi U, Tatishvili G, Teramoto Y, Trabelsi K, Tsuboyama T, Uchida M, Uehara S, Uglov T, Unno Y, Uno S, Usov Y, Vahsen SE, Van Hulse C, Vanhoefer P, Varner G, Varvell KE, Vinokurova A, Vorobyev V, Wagner MN, Wang CH, Wang P, Watanabe M, Watanabe Y, Williams KM, Won E, Yamaoka J, Yamashita Y, Yashchenko S, Yook Y, Yuan CZ, Zhang ZP, Zhilich V, Zupanc A. Measurement of the τ-lepton lifetime at Belle. Phys Rev Lett 2014; 112:031801. [PMID: 24484129 DOI: 10.1103/physrevlett.112.031801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Indexed: 06/03/2023]
Abstract
The lifetime of the τ lepton is measured using the process e+ e- → τ+ τ- , where both τ leptons decay to 3πν(τ). The result for the mean lifetime, based on 711 fb(-1) of data collected with the Belle detector at the ϒ(4S) resonance and 60 MeV below, is τ=(290.17±0.53(stat)±0.33(syst))×10(-15) s. The first measurement of the lifetime difference between τ+ and τ- is performed. The upper limit on the relative lifetime difference between positive and negative τ leptons is |Δτ|/τ<7.0×10(-3) at 90% C.L.
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Affiliation(s)
- K Belous
- Institute for High Energy Physics, Protvino 142281
| | - M Shapkin
- Institute for High Energy Physics, Protvino 142281
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - I Adachi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - D M Asner
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - V Aulchenko
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A M Bakich
- School of Physics, University of Sydney, New South Wales 2006
| | - A Bala
- Panjab University, Chandigarh 160014
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - A Bobrov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Bondar
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana and University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - R Chistov
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - V Chobanova
- Max-Planck-Institut für Physik, 80805 München
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - J Dalseno
- Max-Planck-Institut für Physik, 80805 München and Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - D Dutta
- Indian Institute of Technology Guwahati, Assam 781039
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - H Farhat
- Wayne State University, Detroit, Michigan 48202
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - V Gaur
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Ganguly
- Wayne State University, Detroit, Michigan 48202
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - R Gillard
- Wayne State University, Detroit, Michigan 48202
| | - Y M Goh
- Hanyang University, Seoul 133-791
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana and Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - J Haba
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Hara
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Hayasaka
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | | | - Y Hoshi
- Tohoku Gakuin University, Tagajo 985-8537
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602 and Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | | | - R Itoh
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | | | - I Jaegle
- University of Hawaii, Honolulu, Hawaii 96822
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - E Kato
- Tohoku University, Sendai 980-8578
| | - H Kichimi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - H J Kim
- Kyungpook National University, Daegu 702-701
| | - J B Kim
- Korea University, Seoul 136-713
| | - M J Kim
- Kyungpook National University, Daegu 702-701
| | - Y J Kim
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - B R Ko
- Korea University, Seoul 136-713
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana and University of Maribor, 2000 Maribor
| | - P Križan
- J. Stefan Institute, 1000 Ljubljana and Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - S-H Lee
- Korea University, Seoul 136-713
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Lukin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - T Mori
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - R Mussa
- INFN - Sezione di Torino, 10125 Torino
| | - Y Nagasaka
- Hiroshima Institute of Technology, Hiroshima 731-5193
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Nayak
- Indian Institute of Technology Madras, Chennai 600036
| | | | - C Ng
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - N K Nisar
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Nishida
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - O Nitoh
- Tokyo University of Agriculture and Technology, Tokyo 184-8588
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - S Okuno
- Kanagawa University, Yokohama 221-8686
| | - S L Olsen
- Seoul National University, Seoul 151-742
| | - W Ostrowicz
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - G Pakhlova
- Institute for Theoretical and Experimental Physics, Moscow 117218
| | - C W Park
- Sungkyunkwan University, Suwon 440-746
| | - H Park
- Kyungpook National University, Daegu 702-701
| | - H K Park
- Kyungpook National University, Daegu 702-701
| | | | | | - M Petrič
- J. Stefan Institute, 1000 Ljubljana
| | - L E Piilonen
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - M Ritter
- Max-Planck-Institut für Physik, 80805 München
| | - M Röhrken
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Ryu
- Seoul National University, Seoul 151-742
| | - H Sahoo
- University of Hawaii, Honolulu, Hawaii 96822
| | - T Saito
- Tohoku University, Sendai 980-8578
| | - Y Sakai
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
| | - D Santel
- University of Cincinnati, Cincinnati, Ohio 45221
| | | | - T Sanuki
- Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao and Ikerbasque, 48011 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - D Semmler
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - O Seon
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - C P Shen
- Beihang University, Beijing 100191
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Sibidanov
- School of Physics, University of Sydney, New South Wales 2006
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München and Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - Y-S Sohn
- Yonsei University, Seoul 120-749
| | - S Stanič
- University of Nova Gorica, 5000 Nova Gorica
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - M Steder
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - U Tamponi
- INFN - Sezione di Torino, 10125 Torino and University of Torino, 10124 Torino
| | - G Tatishvili
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | | | - K Trabelsi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Tsuboyama
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - S Uehara
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Uglov
- Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Y Unno
- Hanyang University, Seoul 133-791
| | - S Uno
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Usov
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - S E Vahsen
- University of Hawaii, Honolulu, Hawaii 96822
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - P Vanhoefer
- Max-Planck-Institut für Physik, 80805 München
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - K E Varvell
- School of Physics, University of Sydney, New South Wales 2006
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - M N Wagner
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - C H Wang
- National United University, Miao Li 36003
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | | | | | - K M Williams
- CNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - E Won
- Korea University, Seoul 136-713
| | - J Yamaoka
- University of Hawaii, Honolulu, Hawaii 96822
| | | | | | - Y Yook
- Yonsei University, Seoul 120-749
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090
| | - A Zupanc
- Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
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Sandilya S, Trabelsi K, Mohanty GB, Adachi I, Aihara H, Asner DM, Aushev T, Aziz T, Bakich AM, Bala A, Bhardwaj V, Bhuyan B, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Chen P, Cheon BG, Chilikin K, Chistov R, Cho K, Chobanova V, Choi SK, Choi Y, Cinabro D, Dalseno J, Dingfelder J, Doležal Z, Drutskoy A, Dutta D, Eidelman S, Farhat H, Fast JE, Feindt M, Ferber T, Frey A, Gaur V, Gabyshev N, Ganguly S, Gillard R, Goh YM, Golob B, Haba J, Hara T, Hayasaka K, Hayashii H, Hoshi Y, Hou WS, Hsiung YB, Hyun HJ, Iijima T, Ishikawa A, Itoh R, Iwasaki Y, Julius T, Kah DH, Kang JH, Kato E, Kawai H, Kawasaki T, Kiesling C, Kim DY, Kim HO, Kim JB, Kim JH, Kim YJ, Klucar J, Ko BR, Kodyš P, Korpar S, Križan P, Krokovny P, Kumita T, Kuzmin A, Kwon YJ, Lange JS, Lee SH, Li J, Li Y, Libby J, Liu ZQ, Liventsev D, Lukin P, MacNaughton J, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Moll A, Muramatsu N, Mussa R, Nagasaka Y, Nakao M, Nayak M, Ng C, Nisar NK, Nishida S, Nitoh O, Ogawa S, Okuno S, Oswald C, Pakhlova G, Park CW, Park H, Park HK, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Ritter M, Röhrken M, Rostomyan A, Ryu S, Sahoo H, Saito T, Sakai K, Sakai Y, Santelj L, Sanuki T, Sato Y, Savinov V, Schneider O, Schnell G, Semmler D, Senyo K, Sevior ME, Shapkin M, Shen CP, Shibata TA, Shiu JG, Shwartz B, Sibidanov A, Simon F, Sohn YS, Sokolov A, Solovieva E, Stanič S, Starič M, Steder M, Sumiyoshi T, Tamponi U, Tanida K, Tatishvili G, Teramoto Y, Tsuboyama T, Uchida M, Uehara S, Uglov T, Unno Y, Uno S, Urquijo P, Vahsen SE, Van Hulse C, Vanhoefer P, Varner G, Vorobyev V, Wagner MN, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe M, Watanabe Y, Wiechczynski J, Williams KM, Won E, Yabsley BD, Yamaoka J, Yamashita Y, Yashchenko S, Yuan CZ, Yusa Y, Zhang CC, Zhang ZP, Zhilich V, Zupanc A. Search for bottomonium states in exclusive radiative Υ(2S) decays. Phys Rev Lett 2013; 111:112001. [PMID: 24074074 DOI: 10.1103/physrevlett.111.112001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Indexed: 06/02/2023]
Abstract
We search for bottomonium states in Υ(2S) → (bb)γ decays with an integrated luminosity of 24.7 fb(-1) recorded at the Υ(2S) resonance with the Belle detector at KEK, containing (157.8±3.6)×10(6) Υ(2S) events. The (bb) system is reconstructed in 26 exclusive hadronic final states composed of charged pions, kaons, protons, and K(S)(0) mesons. We find no evidence for the state recently observed around 9975 MeV (X(bb)) in an analysis based on a data sample of 9.3×10(6) Υ(2S) events collected with the CLEO III detector. We set a 90% confidence level upper limit on the branching fraction B[Υ(2S) → X(bb)γ] × ∑(i)B[X(bb) → h(i)] < 4.9×10(-6), summed over the exclusive hadronic final states employed in our analysis. This result is an order of magnitude smaller than the measurement reported with CLEO data. We also set an upper limit for the ηb(1S) state of B[Υ(2S) → ηb(1S)γ] × ∑(i)B[ηb(1S) → h(i)] < 3.7×10(-6).
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Affiliation(s)
- S Sandilya
- Tata Institute of Fundamental Research, Mumbai 400005
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Leitgab M, Seidl R, Grosse Perdekamp M, Vossen A, Adachi I, Aihara H, Asner DM, Aulchenko V, Aushev T, Bakich AM, Bhuyan B, Bondar A, Bozek A, Bračko M, Brodzicka J, Browder TE, Chekelian V, Chen A, Chen P, Cheon BG, Chilikin K, Cho K, Chobanova V, Choi Y, Cinabro D, Dalseno J, Drásal Z, Dutta D, Eidelman S, Epifanov D, Farhat H, Fast JE, Gaur V, Gabyshev N, Gillard R, Giordano F, Goh YM, Golob B, Haba J, Hayasaka K, Hayashii H, Hoshi Y, Hou WS, Hsiung YB, Hyun HJ, Iijima T, Ishikawa A, Itoh R, Jacobs WW, Julius T, Kang JH, Kapusta P, Kato E, Kawasaki T, Kim HJ, Kim HO, Kim JB, Kim JH, Kim MJ, Klucar J, Ko BR, Kodyš P, Kouzes RT, Križan P, Krokovny P, Kumar R, Kumita T, Kwon YJ, Lange JS, Lee SH, Li Y, Liu ZQ, Liventsev D, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Moll A, Muramatsu N, Nakano E, Nakao M, Natkaniec Z, Nayak M, Nedelkovska E, Ng C, Nisar NK, Nitoh O, Ogawa A, Ogawa S, Ohshima T, Okuno S, Olsen SL, Oswald C, Pakhlov P, Park H, Park HK, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Röhrken M, Sahoo H, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Schneider O, Schnell G, Schwanda C, Senyo K, Seon O, Sevior ME, Shapkin M, Shen CP, Shibata TA, Shiu JG, Shwartz B, Sibidanov A, Simon F, Smerkol P, Sohn YS, Sokolov A, Solovieva E, Starič M, Sumihama M, Sumiyoshi T, Tatishvili G, Teramoto Y, Tsuboyama T, Uchida M, Uglov T, Unno Y, Uno S, Usov Y, Van Hulse C, Varner G, Vorobyev V, Wagner MN, Wang CH, Wang J, Wang MZ, Wang P, Watanabe M, Watanabe Y, Williams KM, Won E, Yamashita Y, Zhilich V, Zhulanov V. Precision measurement of charged pion and kaon differential cross sections in e+ e- annihilation at sqrt[s]=10.52 GeV. Phys Rev Lett 2013; 111:062002. [PMID: 23971562 DOI: 10.1103/physrevlett.111.062002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Indexed: 06/02/2023]
Abstract
Measurements of inclusive differential cross sections for charged pion and kaon production in e+ e- annihilation have been carried out at a center-of-mass energy of sqrt[s]=10.52 GeV. The measurements were performed with the Belle detector at the KEKB e+ e- collider using a data sample containing 113×10(6) e+ e- → qq events, where q={u,d,s,c}. We present charge-integrated differential cross sections dσ(h±)/dz for h±={π±,K±} as a function of the relative hadron energy z=2E(h)/sqrt[s] from 0.2 to 0.98. The combined statistical and systematic uncertainties for π± (K±) are 4% (4%) at z∼0.6 and 15% (24%) at z∼0.9. The cross sections are the first measurements of the z dependence of pion and kaon production for z>0.7 as well as the first precision cross section measurements at a center-of-mass energy far below the Z0 resonance used by the experiments at LEP and SLC.
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Affiliation(s)
- M Leitgab
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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Kim BH, Olsen SL, Adachi I, Aihara H, Asner DM, Aulchenko V, Bay A, Belous K, Bhuyan B, Bonvicini G, Bozek A, Bračko M, Browder TE, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho IS, Cho K, Chobanova V, Choi SK, Choi Y, Cinabro D, Dalseno J, Doležal Z, Eidelman S, Epifanov D, Esen S, Farhat H, Fast JE, Gaur V, Ganguly S, Gillard R, Goh YM, Hayasaka K, Hayashii H, Hoshi Y, Hou WS, Hsiung YB, Hyun HJ, Inami K, Ishikawa A, Itoh R, Iwasaki Y, Julius T, Kah DH, Kang JH, Kapusta P, Kato E, Kichimi H, Kim HJ, Kim HO, Kim JH, Kim KT, Kim MJ, Kim SK, Kim YJ, Kinoshita K, Klucar J, Ko BR, Kodyš P, Korpar S, Kouzes RT, Križan P, Krokovny P, Kumita T, Kuzmin A, Kwon YJ, Lange JS, Lee SH, Li J, Li X, Li Y, Libby J, Liventsev D, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moll A, Muramatsu N, Mussa R, Nakano E, Nakao M, Nedelkovska E, Ng C, Nisar NK, Nishida S, Nishimura K, Ohshima T, Okuno S, Pakhlov P, Pakhlova G, Park H, Park HK, Peters M, Petrič M, Piilonen LE, Ritter M, Ryu S, Sahoo H, Sakai Y, Sandilya S, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Schwartz AJ, Semmler D, Senyo K, Seon O, Sevior ME, Shapkin M, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Simon F, Smerkol P, Sohn YS, Sokolov A, Solovieva E, Stanič S, Starič M, Sumihama M, Sumiyoshi T, Tamponi U, Tanida K, Tatishvili G, Teramoto Y, Trabelsi K, Uchida M, Uehara S, Uglov T, Unno Y, Uno S, Usov Y, Van Hulse C, Varner G, Vorobyev V, Wagner MN, Wang CH, Wang P, Watanabe Y, Williams KM, Won E, Yamashita Y, Zhilich V, Zupanc A. Search for an H-dibaryon with a mass near 2mΛ in Υ(1S) and Υ(2S) decays. Phys Rev Lett 2013; 110:222002. [PMID: 23767713 DOI: 10.1103/physrevlett.110.222002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 05/03/2013] [Indexed: 06/02/2023]
Abstract
We report the results of a high-statistics search for H dibaryon production in inclusive Υ(1S) and Υ(2S) decays. No indication of an H dibaryon with a mass near the M(H)=2m(Λ) threshold is seen in either the H→Λpπ(-) or ΛΛ decay channels and 90% confidence level branching-fraction upper limits are set that are between one and two orders of magnitude below the measured branching fractions for inclusive Υ(1S) and Υ(2S) decays to antideuterons. Since Υ(1S,2S) decays produce flavor-SU(3)-symmetric final states, these results put stringent constraints on H dibaryon properties. The results are based on analyses of 102 million Υ(1S) and 158 million Υ(2S) events collected with the Belle detector at the KEKB e(+)e(-) collider.
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Affiliation(s)
- B H Kim
- Seoul National University, Seoul 151-742
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50
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Hara K, Horii Y, Iijima T, Adachi I, Aihara H, Asner DM, Aushev T, Aziz T, Bakich AM, Barrett M, Bhardwaj V, Bhuyan B, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Chekelian V, Chen A, Chen P, Cheon BG, Chilikin K, Cho IS, Cho K, Choi Y, Cinabro D, Dalseno J, Dingfelder J, Doležal Z, Drásal Z, Drutskoy A, Dutta D, Eidelman S, Epifanov D, Esen S, Farhat H, Frey A, Gaur V, Gabyshev N, Ganguly S, Gillard R, Goh YM, Golob B, Haba J, Hara T, Hayasaka K, Hayashii H, Higuchi T, Hoshi Y, Inami K, Ishikawa A, Itoh R, Iwasaki Y, Iwashita T, Julius T, Kang JH, Kawasaki T, Kiesling C, Kim HO, Kim JB, Kim JH, Kim KT, Kim MJ, Kim YJ, Kinoshita K, Klucar J, Ko BR, Kodyš P, Korpar S, Kouzes RT, Križan P, Krokovny P, Kronenbitter B, Kuhr T, Kumita T, Kuzmin A, Kwon YJ, Lange JS, Lee SH, Li J, Li Y, Libby J, Liu C, Liu Y, Liu ZQ, Liventsev D, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moll A, Mori T, Muramatsu N, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nayak M, Ng C, Nisar NK, Nishida S, Nishimura K, Nitoh O, Nozaki T, Ohshima T, Okuno S, Olsen SL, Oswald C, Ozaki H, Pakhlov P, Pakhlova G, Park CW, Park HK, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Prim M, Röhrken M, Ryu S, Sahoo H, Sakai K, Sakai Y, Sandilya S, Santel D, Sanuki T, Sato Y, Schneider O, Schnell G, Schwanda C, Schwartz AJ, Senyo K, Seon O, Sevior ME, Shapkin M, Shen CP, Shibata TA, Shiu JG, Shwartz B, Sibidanov A, Simon F, Smerkol P, Sohn YS, Sokolov A, Solovieva E, Starič M, Sumihama M, Sumiyoshi T, Tatishvili G, Teramoto Y, Trabelsi K, Tsuboyama T, Uchida M, Uehara S, Unno Y, Uno S, Urquijo P, Ushiroda Y, Usov Y, Van Hulse C, Vanhoefer P, Varner G, Varvell KE, Vorobyev V, Wagner MN, Wang CH, Wang MZ, Wang P, Watanabe M, Watanabe Y, Williams KM, Won E, Yabsley BD, Yamamoto H, Yamashita Y, Yusa Y, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. Evidence for B- → τ- ν(τ) with a hadronic tagging method using the full data sample of Belle. Phys Rev Lett 2013; 110:131801. [PMID: 23581309 DOI: 10.1103/physrevlett.110.131801] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Indexed: 06/02/2023]
Abstract
We measure the branching fraction of B- → τ- ν(τ) using the full Υ(4S) data sample containing 772×10(6) BB pairs collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. Events with BB pairs are tagged by reconstructing one of the B mesons decaying into hadronic final states, and B- → τ- ν(τ) candidates are detected in the recoil. We find evidence for B- → τ- ν(τ) with a significance of 3.0 standard deviations including systematic errors and measure a branching fraction B(B- → τ- ν(τ))=[0.72(-0.25)(+0.27)(stat)±0.11(syst)]×10(-4).
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Affiliation(s)
- K Hara
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
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