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Rhee KW, Oh SH, Kim KM, Kim DY, Lee YJ, Kim T, Kim MN. Early bloodstream infection after pediatric living donor living transplantation. Transplant Proc 2012; 44:794-6. [PMID: 22483498 DOI: 10.1016/j.transproceed.2012.01.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
To determine the perioperative risk factors for bacterial infections after pediatric living donor liver transplantation (LDLT), we investigated the clinical profiles of 149 children who underwent pediatric LDLT between 1994 and 2008. Bacterial infections were diagnosed based on guidelines proposed by the Centers for Disease Control. We observed 36 bloodstream infections (BSIs) in 32/149 (21.5%) patients (0.24 infections per patient), which, 21 (58.3%) BSIs in 19 patients were due to gram-positive and 15 (41.7%) in 13 patients to gram-negative organisms. The most common pathogens of early BSI were coagulase-negative Staphylococcus; (n = 11; 30.6%) and Klebsiella pneumoniae (n = 8; 22.2%). The most common site of early BSI was catheter-related (n = 14; 38.9%). Multivariate analysis showed that age ≤ 1 year (P < .05; odds ratio [OR] = 3.90; 95% CI, 1.83-15.26) and bile duct complications (P < .05; OR = 6.2, 95% CI = 3.21-35.23) were significant independent risk factors for early BSIs. More cautious management of pediatric LDLTs may be necessary for younger age children particularly with postoperative biliary complications.
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Kim YS, Kang SJ, Kim JW, Cho HR, Moon SB, Kim KY, Lee HS, Han CH, Ku SK, Lee YJ. Effects of Polycan, a β-glucan, on experimental periodontitis and alveolar bone loss in Sprague-Dawley rats. J Periodontal Res 2012; 47:800-10. [PMID: 22780690 DOI: 10.1111/j.1600-0765.2012.01502.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVE Polycan is a promising candidate for the treatment of periodontal disease. This study was undertaken to examine whether Polycan, a type of β-glucan, has a protective effect on ligature-induced experimental periodontitis and related alveolar bone loss in Sprague-Dawley rats. MATERIAL AND METHODS Polycan was orally administered, daily, for 10 d, at 21.25, 42.5 or 85 mg/kg, beginning 1 d after ligation. Changes in body weight and alveolar bone loss were monitored, and the anti-inflammatory effects of Polycan were determined by measuring the levels of myeloperoxidase (MPO), interleukin-1beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) in gingival tissue. We also evaluated inducible nitric oxide synthase (iNOS) activity and malondialdehyde (MDA) concentrations as a measure of the antioxidant effect. RESULTS Ligature placement led to a marked decrease in body weight, increased alveolar bone loss and increased concentrations of MPO, IL-1β, TNF-α and MDA, as well as increased iNOS activity and inflammatory cell infiltration and decreased collagen-fiber content. Histological examination revealed increases in the number and activity of osteoclast cells, decreases in alveolar bone volume and elevated percentages of osteclasts on the alveolar bone surface. Daily oral treatment with 42.5 or 85 mg/kg of Polycan for 10 d led to significant, dose-dependent inhibition of the effect of ligature placement. CONCLUSION Taken together, these results suggest that 10 d of oral treatment with Polycan effectively inhibits ligature placement-induced periodontitis and related alveolar bone loss via an antioxidant effect.
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Ye BD, Yang SK, Kim D, Shim TS, Kim SH, Kim MN, Lee YJ, Na HK, Park SH, Yang DH, Kim KJ, Byeon JS, Myung SJ, Kim JH. Diagnostic sensitivity of culture and drug resistance patterns in Korean patients with intestinal tuberculosis. Int J Tuberc Lung Dis 2012; 16:799-804. [PMID: 22508109 DOI: 10.5588/ijtld.11.0252] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
SETTING It is challenging to differentiate between intestinal tuberculosis (ITB) and Crohn's disease in areas where TB is still prevalent. The use of diagnostic tools and verifying the drug resistance patterns of ITB can be helpful for its correct diagnosis. OBJECTIVE To determine the diagnostic sensitivity of a culture assay using colonoscopic biopsy specimens and the drug resistance patterns of Mycobacterium tuberculosis isolated from ITB. DESIGN Data from 400 patients diagnosed with ITB were retrospectively analysed. RESULTS Of the 400 patients, 170 (42.5%) were males; the median age at diagnosis was 40 years. The sensitivity of culture was 44.1% (145/329). Resistance to at least one anti-tuberculosis drug was identified in 13 (17.6%) and multidrug-resistant TB (MDR-TB) was diagnosed in two (2.7%) of the 74 patients for whom drug susceptibility testing was performed. Including M. tuberculosis isolated from respiratory specimens, the proportion of MDR-TB was 4.4% (5/113); previous anti-tuberculosis treatment was an independent risk factor for MDR-TB (26.7% vs. 1.0%, P < 0.01). CONCLUSION Culture of colonoscopic biopsy specimens shows substantial diagnostic sensitivity; the frequency of MDR-TB is higher in previously treated cases than in new cases.
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Kim J, Park S, Kang HM, Ahn CW, Kwon HC, Song JH, Lee YJ, Lee KH, Yang H, Baek SY, Yoo SH, Kim SH, Kim H. Human insulin secreted from insulinogenic xenograft restores normoglycemia in type 1 diabetic mice without immunosuppression. Cell Transplant 2012; 21:2131-47. [PMID: 22490341 DOI: 10.3727/096368912x636803] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In the present study, we examined the therapeutic potential of human amnion-derived insulin-secreting cells for type 1 diabetes. Human amniotic mesenchymal stem cells (hAMs) were isolated from amnion and cultivated to differentiate into insulin-secreting cells in vitro. After culture in vitro, the differentiated cells (hAM-ISCs) were intensively stained with dithizone and secreted insulin and c-peptide in a high-glucose-dependent manner. They expressed mRNAs of pancreatic cell-related genes, including INS, PDX1, Nkx6-1, NEUROG3, ISL1, NEUROD1, GLUT1, GLUT2, PC1/3, PC2, GCK, PPY, SST, and GC, and were positive for human insulin and c-peptide. Transplantation of hAM-ISCs into the kidneys of mice with streptozotocin-induced diabetes restored body weight and normalized the blood glucose levels, which lasted for 210 days. Only human insulin and c-peptide were detected in the blood of normalized mice after 2 months of transplantation, but little mouse insulin and c-peptide. Removal of graft-bearing kidneys from these mice resulted in causing hyperglycemia again. Human cell-specific gene, hAlu, and human pancreatic cell-specific genes, insulin, PDX1, GLUT1, GLP1R, Nkx6-1, NEUROD1, and NEUROG3, were detected in the graft-bearing kidneys. Colocalization of human insulin and human nuclei antigen was also observed. These results demonstrate that hAMs could differentiate into functional insulin-secreting cells in vitro, and human insulin secreted from hAM-ISCs following transplantation into type 1 diabetic mice could normalize hyperglycemia, overcoming immune rejection for a long period.
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Lee JM, Lee YJ, Hong J. Amino acid concentrations in serum, urine and dialysate/ultrafiltrate solutions of continuous venovenous hemodiafiltration patients. Crit Care 2012. [PMCID: PMC3363782 DOI: 10.1186/cc10971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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Cho JM, Kim KM, Oh SH, Lee YJ, Rhee KW, Yu E. De novo autoimmune hepatitis in Korean children after liver transplantation: a single institution's experience. Transplant Proc 2012; 43:2394-6. [PMID: 21839275 DOI: 10.1016/j.transproceed.2011.05.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
INTRODUCTION De novo autoimmune hepatitis (AIH) after orthotopic liver transplantation (OLT) has been described as a new type of late graft dysfunction in children who have not undergone transplantation for previous autoimmune liver disease. The purpose of this study was to evaluate the clinical aspects of de novo AIH among children following OLT. PATIENTS AND METHODS Between January 1994 and May 2007, 149 children underwent OLT, including 1 with recurrent AIH who was excluded from this study, whereas 4 others developed de novo AIH (2.7%; n = 4/148). We analyzed the demographics, laboratory characteristics, and response to treatment of the 4 children with de novo AIH following OLT. RESULTS The 4 patients were all girls with a median interval after OLT to presentation of 6.5 years (range, 0.7-8.8 years). The median age when de novo AIH developed was 12.4 years (range, 8.7-17.3 years). All cases were detected by abnormal liver function tests, namely, increased aspartate aminotransferase (AST; median, 322 IU/L; range, 181-919 IU/L). One patient showed elevated immunoglobulin G. Three patients displayed positive antinuclear antibodies. All were seronegative for smooth muscle antibody and liver-kidney microsomal type 1 antibody. One patient showed anti-mitochondrial antibody. All patients were treated with steroids with or without azathioprine. The liver function tests in these 4 patients, improved by at least 50% during the first month of treatment, responding to steroid treatment with or without azathioprine. CONCLUSION In preadolescent or adolescent female patients with unexplained graft dysfunction after OLT, it is important to recognize de novo AIH rapidly and to develop an adequate diagnostic strategy, including evaluation of serum autoantibodies, immunoglobulin G, and liver biopsy.
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Park JA, Pak JJ, Kim J, Lee EY, Lee YJ, Song YW, Lee EB. Adenosine A2A receptor polymorphisms in Korean patients with systemic sclerosis. Int J Immunopathol Pharmacol 2011; 24:505-8. [PMID: 21658325 DOI: 10.1177/039463201102400224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Adenosine A2A receptor (ADORA2A) regulates inflammation, promotes tissue repair and collagen production by human dermal fibroblasts. We investigated the genetic polymorphisms of ADORA2A in susceptibility to systemic sclerosis (SSc). We genotyped 142 Korean SSc patients and 150 controls for polymorphisms of -1751A/C (rs5996696) and 1976C/T (rs5751876), to cover the promoter and all exon sequences of ADORA2A in Koreans, using TaqMan fluorogenic 5' nuclease assay and single base primer extension assay. Neither -1751A/C nor 1976C/T polymorphism showed difference in the distribution of alleles or genotypes between patients and controls with allele frequency of 89.9% v 91.0% for -1751A (p=0.64) and 56.5% v 54.0% for 1976C (p=0.55). Our findings suggest that the role of ADORA2A in SSc may not be genetically related.
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Kim KH, Jung DH, Park KM, Lee YJ, Kim DY, Kim KM, Lee SG. Comparison of open and laparoscopic live donor left lateral sectionectomy. Br J Surg 2011; 98:1302-8. [PMID: 21717424 DOI: 10.1002/bjs.7601] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2011] [Indexed: 12/14/2022]
Abstract
BACKGROUND The present study was undertaken to determine whether laparoscopic live donor left lateral sectionectomy (LLS) in paediatric liver transplantation is a feasible, safe and reproducible procedure, compared with open live donor left lateral sectionectomy (OLS). METHODS A retrospective review was conducted of all consecutive live donor procedures for paediatric liver transplantation performed between May 2008 and October 2009. All live donor hepatectomies were carried out by a single surgeon. RESULTS A total of 26 live donor procedures for paediatric liver transplantation were performed, of which 11 were LLS and 11 OLS; four left hepatectomies were excluded. The LLS group had a significantly shorter hospital stay (mean(s.d.) 6·9(0·3) versus 9·8(0·9) days; P = 0·001) and time to oral diet (2·1(0·3) versus 2·7(0·4) days; P = 0·012). Duration of operation, blood loss, warm ischaemia time and out-of-pocket medical costs were comparable between groups. There was no death in either donor group and only one complication, a wound seroma, in the OLS group. CONCLUSION LLS seemed to be a safe, feasible and reproducible procedure, and was associated with reduced hospital stay.
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Lee JH, Pyon JK, Kim DW, Lee SH, Nam HS, Kang SG, Kim CH, Lee YJ, Chun JS, Cho MK. Expression of RUNX3 in skin cancers. Clin Exp Dermatol 2011; 36:769-74. [PMID: 21623876 DOI: 10.1111/j.1365-2230.2011.04069.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Expression of Runt-related transcription factor 3 (RUNX3) is reduced in a large number of cancers. However, a few studies have reported higher expression of RUNX3 in several cancers, including basal cell carcinoma (BCC). In light of this, we explored the expression of RUNX3 in skin cancers generally, to determine whether it acts as an oncogene or a tumour-suppressor gene in skin tumours. AIM To investigate the expression of RUNX3 in normal skin and malignant skin tumours. METHODS RUNX3 expression was evaluated by western blotting in 24 specimens, comprising 6 malignant melanoma (MM), 6 squamous cell carcinoma (SCC), 6 BCC and 6 normal skin specimens. Immunohistochemical staining was carried out to analyse RUNX3 expression in 16 MM, 16 SCC and 16 BCC specimens. To identify where the protein was expressed, the cytoplasmic and nuclear protein expression of RUNX3 in skin cancer tissues was determined. A cell-proliferation study was performed on an MM line (G361) by small interfering (si)RNA transfection. RESULTS The western blotting experiments showed that RUNX3 was not expressed in normal skin tissues, but it was overexpressed in all MM and SCC samples, and in five of the six BCC samples. Using immunochemistry, RUNX3 was found to be overexpressed in all cancer tissues analysed. Subcellular fraction analysis revealed that RUNX3 was expressed in the nuclei but not the cytoplasm of all the skin cancer tissues analysed, and RUNX3 silencing by siRNA in G361 cells resulted in a decrease in proliferation. CONCLUSIONS Based on these results, we suggest that RUNX3 has an oncogenic potential and does not act as a tumour suppressor in skin cancers.
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Choi JM, Park KM, Kim SH, Hwang DW, Chon SH, Lee JH, Lee SY, Lee YJ. Effect of necrosis modulator necrox-7 on hepatic ischemia-reperfusion injury in beagle dogs. Transplant Proc 2011; 42:3414-21. [PMID: 21094788 DOI: 10.1016/j.transproceed.2010.08.050] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 07/29/2010] [Accepted: 08/26/2010] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The liver is susceptible to ischemia-reperfusion (IR) injury during inflow occlusion for hepatectomy. There is no effective pharmacologic agent available to prevent the release of high-mobility-group box 1 (HMGB1) or to ameliorate IR injury. This pilot study sought to develop a model in beagle dogs for the purpose of testing the efficacy of a necrosis modulator, necrox-7, to prevent hepatic IR injury in beagle dogs. METHODS Six male beagle dogs were randomly assigned to the control group (group A; n = 3) or the treatment group (group B; n = 3). Under general anesthesia, group B received intravenous infusion of necrox-7 (13 mg/kg over 20 minutes) followed by 60 minutes of left hepatic inflow occlusion and 60 minutes of reperfusion. Both groups were tested for serum biochemicals, hematology values, liver biopsies, and plasma HMGB1 levels over a 48-hour period. RESULTS The maximum alanine transferase (ALT), aspartate transferase (AST), and lactate dehydrogenase (LDH) levels among group A versus group B were: ALT 868.3 ± 337.4 IU/L vs 274.3 ± 72.6 IU/L (P = .041); AST 1,024.7 ± 246.5 IU/L vs 505.3 ± 66.7 IU/L (P = .024); and LDH 962.7 ± 226.2 IU/L vs 552.7 ± 62.4 IU/L (P = .039). Liver biopsy demonstrated marked necrosis and inflammatory infiltrates in group A, whereas group B showed little evidence of IR injury. The plasma HMGB1 concentration was significantly lower among group B versus A. CONCLUSION This pilot study developed a hepatic IR injury model, demonstrating that necrox-7 reduced hepatic necrosis secondary to IR injury in a large animal setting.
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Paek MR, Lee YJ, Yoon H, Kang HM, Kim MC, Choi JG, Jeong OM, Kwon JS, Moon OK, Lee SJ, Kwon JH. Survival rate of H5N1 highly pathogenic avian influenza viruses at different temperatures. Poult Sci 2010; 89:1647-50. [PMID: 20634520 DOI: 10.3382/ps.2010-00800] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The survival rate of Korean H5N1 highly pathogenic avian influenza (HPAI) viruses was investigated at different temperatures under the laboratory conditions. The estimated survival days for a starting viral concentration of 10(6.5) 50% egg infectious dose/0.1 mL were 930, 1,042, and 3,213 d at 4 degrees C; 226, 232, and 293 d at 20 degrees C; and 51, 55, and 58 d at 30 degrees C for A/chicken/Korea/ES/03, A/chicken/Korea/IS/06, and A/chicken/Korea/Gimje/08 (Gimje/08) viruses, respectively. The stability of the Gimje/08 virus was statistically significant compared with the other 2 viruses except for the data between Gimje/08 and A/chicken/Korea/IS/06 virus at 30 degrees C. This result indicated that the survival rate of 3 Korean HPAI viruses is different at various temperatures, which might have partially influenced the large scale of HPAI outbreak in Korea in 2008.
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112
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Lim JH, Bae EH, Park SH, Lee KJ, M SR, Kwon EY, Lee YJ, Jung YT. Development of a real time RT-PCR with SYBR Green dye for the detection of several viruses from the bulbs and leaves of lily. Acta Virol 2010; 54:319-21. [PMID: 21175260 DOI: 10.4149/av_2010_04_319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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113
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Kwon YK, Kwon KY, Joh SJ, Kim MC, Kang MS, Lee YJ, Kwon JH, Kim JH. The susceptibility of magpies to a highly pathogenic avian influenza virus subtype H5N1. Poult Sci 2010; 89:1156-61. [PMID: 20460661 DOI: 10.3382/ps.2009-00549] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Korean wild magpies (Pica pica sericea) were intranasally inoculated with highly pathogenic avian influenza (A/Chicken/Korea/ES/03 virus) (H5N1), which was classified as clade 2.5. We estimated viral replication, death after infection, and histology and immunohistochemistry. This species was highly susceptible to severe infection; 100% of birds died within 5 to 8 d. The virus was detected from oropharyngeal (1 to 5 d postinfection) and cloacal (3 to 5 d postinfection) swabs from infected magpies. At necropsy, the prominent lesions were coalescing necrosis of the pancreas with enlargement of livers and spleens. Microscopically, pancreas, brain, heart, adrenal gland, and kidney were most consistently affected with necrotic and inflammatory changes, and viral antigen was frequently demonstrated in the parenchyma of these organs. As a result, Korean wild magpies were very susceptible to avian influenza (H5N1) virus.
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Lee YJ, Park SS, Kim SY, Lee JY, Koo HK, Yoon HI. A case of systemic polyarteritis nodosa involving bronchial artery. SARCOIDOSIS, VASCULITIS, AND DIFFUSE LUNG DISEASES : OFFICIAL JOURNAL OF WASOG 2010; 27:164-168. [PMID: 21319600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Polyarteritis nodosa (PAN) is a systemic necrotizing vasculitis involving predominantly medium-sized muscular arteries. It commonly involves skin, kidney, cardiovascular system, gastrointestinal system, and neurological system. But bronchial artery involvement of PAN is rarely identified. We report a case of PAN with initial presentation of hemoptysis. On admission, chest radiograph and chest CT angiography revealed no focus of bleeding. Angiography showed a bronchial artery aneurysm and multiple arterial aneurysms in both renal, hepatic, mesenteric and branches of small bowel arteries. These findings were compatible with the diagnosis of PAN. The patient was started on steroid and cyclophosphamide.
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Echtermeyer F, Betrand J, Meinecke I, Neugebauer K, Herzog C, Lee YJ, Song YW, Dreier R, Pap T. Syndecan-4 regulates cartilage degradation in osteoarthritis. Ann Rheum Dis 2010. [DOI: 10.1136/ard.2010.129593u] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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116
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Ziauddin MF, Guo ZS, O'Malley ME, Austin F, Popovic PJ, Kavanagh MA, Li J, Sathaiah M, Thirunavukarasu P, Fang B, Lee YJ, Bartlett DL. TRAIL gene-armed oncolytic poxvirus and oxaliplatin can work synergistically against colorectal cancer. Gene Ther 2010; 17:550-9. [PMID: 20182517 PMCID: PMC3250063 DOI: 10.1038/gt.2010.5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We have explored a unique combination therapy for metastatic colorectal cancer. This strategy combines a potent and new oncolytic poxvirus expressing a membrane-bound tumor necrosis factor-related apoptosis-inducing ligand (TRAIL or TNFSF10) and oxaliplatin (Ox) chemotherapy. We hypothesized that TRAIL expression would increase the efficacy of the oncolytic poxvirus, and that the therapeutic efficacy would be further enhanced by combination with chemotherapy. The cytotoxicity to cancer cells by Ox, oncolytic vaccinia virus (VV) and trail gene-armed VV alone or in combination was tested in vitro. The trail gene armed oncolytic VV-expressed high levels of TRAIL in infected cancer cells and had greater potency as a cytotoxic agent compared with the parent VV. Ox alone exerted concentration-dependent cytotoxicity. In vitro, the combination of the two agents applied at suboptimal concentrations for individual therapy displayed synergy in inducing cancer cells into enhanced levels of apoptosis/necrosis. Western blot analyses were consistent with the notion that TRAIL induced cancer cell death mainly through apoptosis, whereas Ox and vJS6 induced cell death more through non-apoptotic death pathways. In two aggressive colorectal carcinomatosis models derived from human HCT116 and murine MC38 cells, the combination therapy displayed synergistic or additive antitumor activity and prolonged the survival of the tumor-bearing mice compared with either Ox chemotherapy or vvTRAIL-mediated oncolytic gene therapy alone. This combination strategy may provide a new avenue to treating peritoneal carcinomatosis and other types of metastases of colorectal cancer.
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Lee YJ, Chiang AS. Ultrastructural changes in corpora allata during a cycle of juvenile hormone biosynthesis in embryos of the viviparous cockroach, Diploptera punctata. Tissue Cell 2009; 29:715-25. [PMID: 18627835 DOI: 10.1016/s0040-8166(97)80047-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/1997] [Accepted: 08/12/1997] [Indexed: 10/25/2022]
Abstract
We have observed changes with time in the fine structure of corpora allata (CA) during a known cycle of increasing and decreasing juvenile hormone (JH) synthesis in late embryos of Diploptera punctata. A previous report showed that rates of JH release were relatively low in 28-day-old embryos, but CA activity subsequently rose linearly to a peak on about day 42, and thereafter steadily declined to a low level on day 64 just before birth (Holbrook et al., 1997). We now show that, regardless of rate of JH synthesis, CA cells are large and replete with organelles which nevertheless exhibit variable morphology in embryos of different age. Highly active CA cells on day 40 contain abundant ring-form mitochondria, whereas CA cells of low activity on days 28 and 64 contain mitochondria that are rod-shaped or globular. Mitochondrial cristae were scarce and indistinct on day 28 but numerous and well developed on day 64. Endoplasmic reticula (ER) are rare on day 28 and appear in increasing numbers when CA activity rises. On day 40, ER are abundant and often exhibit a whorl-like appearance which is not observed on day 28. After day 44, when biosynthetic activity is declining, whorls of ER gradually decrease in number and are ultimately replaced by vesicular smooth ER on day 64. Neurosecretions are found only after day 38, by which time rates of JH synthesis have increased substantially from those of day 28. Except for membranous autophagic vacuoles, which are frequently found when ER whorls disintegrate as rates of JH synthesis decline toward birth, most autophagic vesicles such as multivesicular vesicles and dense bodies occur only sporadically among CA cells at all examined ages. We conclude that synchronous autophagy of exhausted organelles, which results in atrophy of CA cells and long-term arrest of JH synthesis in adult females of D. punctata, does not occur in embryos. The slow cyclic change in rate of JH synthesis in embryonic CA is most likely due to asynchronous autophagic activity and to alterations in certain unique features of intracellular organelles.
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Lee YJ, Lee SU, Chung SY, Cho BH, Kwak JY, Kang CM, Park JT, Han DJ, Kim DJ. Clinical outcomes of multicenter domino kidney paired donation. Am J Transplant 2009; 9:2424-8. [PMID: 19624563 DOI: 10.1111/j.1600-6143.2009.02747.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Domino kidney paired donation (KPD) is a method by which an altruistic living nondirected donor (LND) is allocated to a pool of incompatible donor-recipient pairs (DRP) and a series of KPDs is initiated. To evaluate the feasibility and clinical outcomes of multicenter domino KPD, we retrospectively analyzed a cohort of DRPs who underwent domino KPD between February 2001 and July 2007 at one of 16 transplant centers. One hundred seventy-nine kidney transplants were performed, with 70 domino chains initiated by altruistic LND. There were 45 two-pair chains, 15 three-pair chains, 7 four-pair chains, 2 five-pair chains and 1 six-pair chain. A majority of donors were spouses (47.5%) or altruistic LNDs (39.1%). DRPs with a blood type O recipient or an AB donor comprised 45.9% of transplanted DRPs. HLA mismatch improved in transplanted donors compared to intended donors in pairs enrolled to improve HLA mismatch (3.4 +/- 0.7 vs. 4.8 +/- 1.0, p < 0.001). One-year and 5-year graft survival rates were 98.3% and 87.7%, respectively, with a median follow-up of 46 months. One-year and 5-year patient survival rates were 97.2% and 90.8%, respectively. In conclusion, multicenter domino KPD could multiply the benefits of donation from LNDs, with patients and graft survival rates comparable to those seen with conventional KPD.
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Yoon H, Moon OK, More SJ, Park CK, Park JY, Lee YJ, Lee SD, Ha JK, Jeong SK, Jeong JW, Lee SJ. An outbreak of highly pathogenic avian influenza at a public animal exhibit in seoul, Korea, during 2008. Zoonoses Public Health 2009; 57:142-5. [PMID: 19638167 DOI: 10.1111/j.1863-2378.2009.01235.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study describes the first recorded outbreak of HPAI in the city of Seoul, in captive birds held in an exhibition for public viewing at a local district office. The index cases were two pheasants, which had been introduced into the exhibit on 24 April, 4 days prior to death, from a store in a local market in Gyeonggi-do. Ducks and chickens from an HPAI outbreak farm, subsequently confirmed on 4 May, had also been held in this store. This outbreak highlights the potential role of local markets in AIV transmission. This outbreak led to considerable public health concern in Korea, however, no human cases were reported. The non-commercial poultry sector needs to be considered in national plans for preparedness and response.
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Im CH, Kang EH, Ki JY, Shin DW, Choi HJ, Chang EJ, Lee EY, Lee YJ, Lee EB, Kim HH, Song YW. Receptor activator of nuclear factor kappa B ligand-mediated osteoclastogenesis is elevated in ankylosing spondylitis. Clin Exp Rheumatol 2009; 27:620-625. [PMID: 19772794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE Ankylosing spondylitis (AS) is an inflammatory arthritis involving the axial skeleton. Decreased bone mineral density has also been reported in AS patients. This study sought to determine whether osteoclastogenesis and osteoclast activity are increased in AS. METHODS Twenty patients with AS were evaluated using the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) and other clinical parameters. Mononuclear cells were separated out from peripheral blood samples taken from AS patients and normal healthy controls and cultured with monocyte colony stimulating factor and receptor activator of the nuclear factor kappa B ligand (RANKL). Multi-nucleated, tartrate-resistant acid phosphatase stain-positive osteoclasts were counted after 9 days, and the areas of calcium absorption on calcium-coated plates were determined. RESULTS Osteoclastogenesis was significantly greater in AS patients than in normal controls (number of osteoclasts/1106 mononuclear cells, median, 518.0 vs. 362.5, p=0.036). No differences were observed between AS patients and controls in terms of calcium absorption areas or the serum concentrations of tumor necrosis factor and RANKL. Osteoclastogenesis was greater in AS patients with sacroiliac joint ankylosis than in those without. Osteoclastogenesis and the calcium absorption area were not found to be correlated with BASDAI nor with other clinical parameters including age, erythrocyte sedimentation rate, and C-reactive protein levels. CONCLUSION Osteoclastogenesis is elevated in AS patients, especially in those with sacroiliac joint ankylosis. Increased osteoclastogenesis may be related to osteopenia in AS patients.
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Pan CF, Wu CJ, Chen HH, Dang CW, Chang FM, Liu HF, Chu CC, Lin M, Lee YJ. Molecular analysis of HLA-DRB1 allelic associations with systemic lupus erythematous and lupus nephritis in Taiwan. Lupus 2009; 18:698-704. [DOI: 10.1177/0961203308101955] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
To evaluate the association of human leukocyte antigen (HLA)–DRB1 alleles with systemic lupus erythematosus (SLE) and lupus nephritis (LN) in the Taiwanese population, and to investigate the possible association of HLA-DRB1 alleles with disease severity in LN. HLA-DRB1 alleles were studied in 105 SLE patients (82 patients with LN, 23 patients without LN) and 855 healthy controls by polymerase chain reaction and sequence-based typing assays. The frequency of the HLA class II alleles DRB1*0301 (Odds ratio [OR] = 2.01, 95% confidence interval [CI] = 1.31–3.10, Pc = 0.02) and DRB1*1501 (OR = 2.06, 95% CI = 1.36–3.13, Pc = 0.01) were both increased in SLE patients, compared to healthy controls. The frequency of DRB1*1202 was significantly lower in LN patients than in SLE patients without nephritis (OR = 0.23, 95% CI = 0.09–0.57, Pc = 0.01). No specific allele was significantly associated with an increased or decreased risk for severity of LN in this sample. In Taiwanese people, the DRB1*0301 and DRB1*1501 alleles are significant risk factors for SLE, while the DRB1*1202 allele is protective for LN.
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Koh Y, Lim CM, Koh SO, Ahn JJ, Kim YS, Jung BH, Cho JH, Lee JH, Lee MG, Jung KS, Kwon OJ, Lee YJ. A national survey on the practice and outcomes of mechanical ventilation in Korean intensive care units. Anaesth Intensive Care 2009; 37:272-80. [PMID: 19400492 DOI: 10.1177/0310057x0903700205] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A study was undertaken to describe the practice and outcomes of mechanical ventilation throughout Korea. This prospective cohort study was conducted over a three-month period enrolling patients (n = 519) who received mechanical ventilation for more than 72 hours in 21 university hospital intensive care units throughout Korea. The most common indication for mechanical ventilation was acute respiratory failure. The most common cause of acute-on-chronic respiratory failure was tuberculous lung disease. The most common initial mode for ventilation was volume-controlled ventilation. The mean tidal volume of acute respiratory distress syndrome patients was 7.6 ml/kg of the predicted body weight and the mean positive end-expiratory pressure was 9.4 cmH20. The weaning success rate at 28 days was 50.3%. Pressure support and the T-piece were most commonly used as initial and final weaning modes respectively. Preventive measures against deep vein thrombosis during mechanical ventilation were performed more frequently in intensive care units with full-time critical care physicians than those without such physicians. Multivariate analysis showed that the APACHE II score, indication for mechanical ventilation, respiratory rate at 72 hours, enteral feeding and prophylaxis of deep vein thrombosis were prognostic factors for survival. In Korean intensive care units, tuberculous lung disease remains an important cause for mechanical ventilation. The practice of mechanical ventilation in Korean intensive care units in general appeared to comply with the current international recommendations with regard to lung protection and weaning. However, intensive care units lacking critical care physicians seemed to be adopting fewer ancillary measures, such as deep vein thrombosis prophylaxis.
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Kim MY, Rha SE, Oh SN, Lee YJ, Byun JY, Jung CK, Kang WK. Case report. Lipomatous haemangiopericytoma (fat-forming solitary fibrous tumour) involving the perineum: CT and MRI findings and pathological correlation. Br J Radiol 2009; 82:e23-6. [PMID: 19168684 DOI: 10.1259/bjr/26727658] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Lipomatous haemangiopericytoma (a fat-forming solitary fibrous tumour) is a rare soft-tissue tumour histologically characterized by haemangiopericytomatous vasculature and the presence of mature adipocytes. We report the CT and MRI findings of a case of lipomatous haemangiopericytoma involving the perineum. CT showed a well-circumscribed soft-tissue density mass containing a small area of fat density and a punctuate calcification. On MR images, the mass was mostly isointense to the muscle on T(1) weighted images, with heterogeneous signal intensity on T(2) weighted images, and showed strong contrast enhancement except for the fatty and dense collagenous components. This is the first case report of imaging findings of a lipomatous haemangiopericytoma in the radiological literature. Although rare, lipomatous haemangiopericytoma should be considered as a differential diagnosis of fat-containing, hypervascular soft-tissue tumours with variable signal intensity on T(2) weighted images.
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Kim J, Im CH, Kang EH, Lee EY, Lee YJ, Park KS, Song YW. Mannose-binding lectin gene-2 polymorphisms and serum mannose-binding lectin levels in Behçet's disease. Clin Exp Rheumatol 2009; 27:S13-S17. [PMID: 19796526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE Behçet's disease (BD) is an autoimmune disease with an unknown etiology and mannose-binding lectin (MBL) is a pattern recognition receptor in the innate immune system, which is associated with some autoimmune diseases. We investigated MBL2 gene polymorphisms and serum MBL levels in BD patients and controls. METHODS MBL2 gene polymorphisms in exon 1 (MBL2 54 Gly/Asp, (A/B)), promoter (MBL2 H/L (G-550C), MBL2 Y/X (G-221C)), and 5' UTR region (MBL2 P/Q (C+4T)) were investigated using polymerase chain reaction and restriction fragment length polymorphism in 119 BD patients and 252 healthy controls. Serum MBL levels were measured by enzyme linked immunosorbent assay in 49 BD patients and 102 sex-/genotype-matched controls. RESULTS No significant difference was found between BD patients and controls in terms of MBL2 polymorphisms and MBL serum levels. However, the presence of genital ulcer and neurologic involvement were found to be associated with MBL2 54 allele A (OR=2.415, OR=6.632, respectively). Eye involvement was found to be related to the presence of the MBL2 54 AA or AB genotypes (OR=12.46), MBL2-G-550C allele H (OR=1.829). High serum MBL level (> or =500 ng/ml) was associated with skin lesions (p=0.002). CONCLUSION The frequencies of the four MBL2 genetic polymorphisms examined were not different in BD patients and healthy controls. However, the presence of genital ulcer, eye involvement, and neuro-Behcet's disease were found to be associated with MBL2 polymorphisms that are associated with the production of high levels of MBL or functional MBL.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bar-Shalom S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Rajaraman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyria A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu F, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Search for maximal flavor violating scalars in same-charge lepton pairs in pp collisions at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2009; 102:041801. [PMID: 19257412 DOI: 10.1103/physrevlett.102.041801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Indexed: 05/27/2023]
Abstract
Models of maximal flavor violation (MxFV) in elementary particle physics may contain at least one new scalar SU(2) doublet field Phi(FV)=(eta(0),eta(+)) that couples the first and third generation quarks (q_(1), q_(3)) via a Lagrangian term L(FV)=xi(13)Phi(FV)q(1)q(3). These models have a distinctive signature of same-charge top-quark pairs and evade flavor-changing limits from meson mixing measurements. Data corresponding to 2 fb(-1) collected by the Collider Dectector at Fermilab II detector in pp[over ] collisions at sqrt[s]=1.96 TeV are analyzed for evidence of the MxFV signature. For a neutral scalar eta(0) with m_(eta;(0))=200 GeV/c(2) and coupling xi(13)=1, approximately 11 signal events are expected over a background of 2.1+/-1.8 events. Three events are observed in the data, consistent with background expectations, and limits are set on the coupling xi(13) for m(eta(0)=180-300 GeV/c(2).
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Kim YU, Kang SK, So IM, Han DK, Lee SS, Lee YJ, Jung ST. Emergency recognition system based on multimodal information. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2009; 2008:4342-5. [PMID: 19163674 DOI: 10.1109/iembs.2008.4650171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This paper aims to propose an emergency recognition system using multimodal information extracted by an image processing module, a voice processing module, and a gravity sensor processing module. Each processing module detects predefined events such as moving, stopping, fainting, and transfer them to the multimodal integration module. Multimodal integration module recognizes emergency situation by using the transferred events and rechecks it by asking the user some question and recognizing the answer. The experiment was conducted for a faint motion in the living room and bathroom. The results of the experiment show that the proposed system is robust than previous methods and effectively recognizes emergency situations at various situations.
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Kang EH, Moon KC, Lee EY, Lee YJ, Lee EB, Ahn C, Song YW. Renal expression of galectin-3 in systemic lupus erythematosus patients with nephritis. Lupus 2009; 18:22-8. [DOI: 10.1177/0961203308094361] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The aim of the study is to characterize the expression pattern of galectin-3 (Gal-3) in renal tissues of patients with systemic lupus erythematosus (SLE) nephritis and to determine whether tissue and serum Gal-3 are associated with SLE nephritis. Gal-3 expressions were examined with immunohistochemistry in renal biopsy specimens of 88 patients with SLE nephritis and in five normal specimens. Activity and chronicity indexes and glomerular Gal-3 expressions were analysed in each specimen. Serum Gal-3 levels were measured using enzyme-linked immunosorbent assays in 20 patients with SLE, including 11 with nephritis, and in 50 healthy controls. Glomerular Gal-3 expression was observed in 81.8% (72/88) of patients with SLE nephritis but not in 5 controls. Gal-3 staining was attributed mainly to its cellular expression rather than its deposition, and Gal-3 expression levels were correlated with histologic activity indexes, anti-dsDNA titers, and complement 3 and 4 levels. Serum Gal-3 levels were higher in patients with SLE, particularly in those with nephritis, than in healthy controls, and correlated with anti-dsDNA titers. In conclusion, glomerular Gal-3 expression in renal tissue and serum Gal-3 levels were elevated in patients with SLE nephritis versus healthy controls; moreover, they reflected disease activity. These findings suggest that Gal-3 might contribute to the inflammatory process in SLE.
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Kim MY, Rha SE, Oh SN, Lee YJ, Jung ES, Byun JY. Case report: Ovarian cavernous haemangioma presenting as a heavily calcified adnexal mass. Br J Radiol 2008; 81:e269-71. [PMID: 18941040 DOI: 10.1259/bjr/21920101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Haemangioma is an extremely rare tumour of the ovary. We describe the CT and MRI findings of a heavily calcified ovarian haemangioma in a 69-year-old woman presenting with adnexal torsion. CT showed a well-circumscribed mass with extensive punctate calcifications, located posterior to the uterus. MR images showed dark signal intensities of the mass on both T(1) and T(2) weighted images, with poor enhancement of the mass on contrast-enhanced T(1) weighted images. MR images also demonstrated a beak-like protrusion from the adnexal mass, representing the adnexal torsion. This is the first case report of a heavily calcified ovarian haemangioma in the English literature. Although rare, ovarian haemangioma should be included in the differential diagnosis of a heavily calcified adnexal mass.
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Kim JS, Kim KM, Ko JK, Lee YJ, Lee SG. Intrapulmonary shunt in the course of pediatric liver transplantation. Transplant Proc 2008; 40:2512-4. [PMID: 18929783 DOI: 10.1016/j.transproceed.2008.07.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The hepatopulmonary syndrome occurs when an intrapulmonary shunt (IPS) causes hypoxemia in patients with cirrhosis. Because IPS has not been clearly defined in children, we investigated the prevalence, clinical characteristics, and outcomes of IPS in children undergoing liver transplantation (OLT). Of the 107 pediatric OLT recipients between December 1994 and March 2005, 18 (16.8%) had IPS, as evaluated by contrast-enhanced echocardiography (CEE) at 9 months to 16 years of age. The degree of IPS was classified into five grades according to the extent of microbubbles in the left ventricle, with significant IPS defined as grade II or higher. Baseline characteristics, including serum total bilirubin, albumin, aminotransferase, and prothrombin time, did not differ in patients with or without IPS. The patients with IPS had significantly lower Pao2 and Sao2, longer duration of mechanical ventilation and hospital stay, and higher postoperative morbidity and mortality than patients without IPS (P < .05 each), but there were no other significant differences between the groups. The six patients with significant IPS (one grade II, three grade III, and two grade IV) showed a significantly greater morbidity and mortality than patients with grade I IPS (P < .05). Most of the positive CEE findings of IPS regressed within 6 months after OLT. These findings indicated that IPS is not uncommon among children undergoing OLT, but is reversible. Because severe IPS may increase patient morbidity and mortality, early assessment of IPS status using CEE is essential for pediatric OLT candidates.
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Lee HE, Chae SW, Lee YJ, Kim MA, Lee HS, Lee BL, Kim WH. Prognostic implications of type and density of tumour-infiltrating lymphocytes in gastric cancer. Br J Cancer 2008; 99:1704-11. [PMID: 18941457 PMCID: PMC2584941 DOI: 10.1038/sj.bjc.6604738] [Citation(s) in RCA: 232] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The study aims to determine whether type and density of tumour-infiltrating lymphocytes (TILs) can predict the clinical course in gastric cancer. Gastric carcinomas (n=220) were immunostained for CD3, CD8, CD20, and CD45RO and evaluated for clinicopathologic characteristics. Number of TILs that immunostained positively for each marker were counted using NIH ImageJ software. Tumours were grouped into low- and high-density groups for each marker (CD3, CD8, CD45RO). The densities of CD3(+), CD8(+), and CD45RO(+) TILs were found to be independent predictors of lymph node metastasis by multivariate analysis with odds ratios (95% CI) of 0.425 (0.204-0.885), 0.325 (0.150-0.707), and 0.402 (0.190-0.850), respectively. Kaplan-Meier survival analysis revealed that patients in the high-density groups for CD3, CD8, and C45RO had a significantly longer survival time than the patients in the corresponding low-density groups, respectively. In multivariate survival analysis, the densities of CD3(+), CD8(+), and CD45RO(+) TILs remained independent prognostic factors with hazard ratios (95% CI) of 0.549 (0.317-0.951), 0.574 (0.347-0.949), and 0.507 (0.298-0.862), respectively. In conclusion, density of TILs was found to be independently predictive of regional lymph node metastasis and patient survival in gastric cancer.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, MacQueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Search for doubly charged Higgs bosons with lepton-flavor-violating decays involving tau leptons. PHYSICAL REVIEW LETTERS 2008; 101:121801. [PMID: 18851361 DOI: 10.1103/physrevlett.101.121801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2007] [Indexed: 05/26/2023]
Abstract
We search for pair production of doubly charged Higgs particles (H+/- +/-) followed by decays into electron-tau (etau) and muon-tau (mutau) pairs using data (350 pb(-1) collected from [over]pp collisions at sqrt[s]=1.96 TeV by the CDF II experiment. We search separately for cases where three or four final-state leptons are detected, and combine results for exclusive decays to left-handed etau (mutau) pairs. We set an H+/- +/- lower mass limit of 114(112) GeV/c(2) at the 95% confidence level.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Liss TM, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, MacQueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Griso SP, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Search for pair production of scalar top quarks decaying to a tau lepton and a b quark in pp over collisions at sqrt s=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 101:071802. [PMID: 18764522 DOI: 10.1103/physrevlett.101.071802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2008] [Indexed: 05/26/2023]
Abstract
We search for pair production of supersymmetric top quarks (t over1), followed by R-parity violating decay t over1-->taub with a branching ratio beta, using 322 pb(-1) of pp over collisions at sqrt s=1.96 TeV collected by the upgraded Collider Detector at Fermilab. Two candidate events pass our final selection criteria, consistent with the standard model expectation. We set upper limits on the cross section sigma(t over1t over1) x beta2 as a function of the top-squark mass m(t over1). Assuming beta=1, we set a 95% confidence level limit m(t over1)>153 GeV/c2. The limits are also applicable to the case of a third-generation scalar leptoquark (LQ3) decaying LQ3-->taub.
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Aaltonen T, Abulencia A, Adelman J, Akimoto T, Albrow MG, González BA, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Gerberich H, Gerdes D, Giagu S, Giannetti P, Gibson K, Gimmell JL, Ginsburg C, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Goldstein J, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savard P, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner J, Wagner W, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Search for resonant tt[overline] production in pp[overline] collisions at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 100:231801. [PMID: 18643483 DOI: 10.1103/physrevlett.100.231801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2007] [Indexed: 05/26/2023]
Abstract
We report on a search for narrow-width particles decaying to a top and antitop quark pair. The data set used in the analysis corresponds to an integrated luminosity of 680 pb(-1) collected with the Collider Detector at Fermilab in run II. We present 95% confidence level upper limits on the cross section times branching ratio. Assuming a specific top-color-assisted technicolor production model, the leptophobic Z' with width Gamma(Z')=0.012M(Z'), we exclude the mass range M(Z')<725 GeV/c(2) at the 95% confidence level.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Rott C, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Search for the Higgs boson in events with missing transverse energy and b quark jets produced in pp collisions at square root(s)=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 100:211801. [PMID: 18518598 DOI: 10.1103/physrevlett.100.211801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2008] [Indexed: 05/26/2023]
Abstract
We search for the standard model Higgs boson produced in association with an electroweak vector boson in events with no identified charged leptons, large imbalance in transverse momentum, and two jets where at least one contains a secondary vertex consistent with the decay of b hadrons. We use approximately 1 fb(-1) integrated luminosity of pp collisions at square root(s)=1.96 TeV recorded by the Collider Detector at Fermilab II experiment at the Tevatron. We find 268 (16) single (double) b-tagged candidate events, where 248+/-43 (14.4+/-2.7) are expected from standard model background processes. We observe no significant excess over the expected background and thus set 95% confidence level upper limits on the Higgs boson production cross section for several Higgs boson masses ranging from 110 to 140 GeV/c(2). For a mass of 115 GeV/c(2), the observed (expected) limit is 20.4 (14.2) times the standard model prediction.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, MacQueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S, Group RC. Strong evidence for ZZ production in pp[over] collisions at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 100:201801. [PMID: 18518523 DOI: 10.1103/physrevlett.100.201801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Indexed: 05/26/2023]
Abstract
We report the first evidence of Z boson pair production at a hadron collider with a significance exceeding 4 standard deviations. This result is based on a data sample corresponding to 1.9 fb(-1) of integrated luminosity from pp[over] collisions at sqrt[s]=1.96 TeV collected with the Collider Detector at Fermilab II detector. In the lll'l' channel, we observe three ZZ candidates with an expected background of 0.096(-0.063)+0.092 events. In the llnunu channel, we use a leading-order calculation of the relative ZZ and WW event probabilities to discriminate between signal and background. In the combination of lll'l' and llnunu channels, we observe an excess of events with a probability of 5.1 x 10(-6) to be due to the expected background. This corresponds to a significance of 4.4 standard deviations. The measured cross section is sigma(pp[over]-->ZZ)=1.4(-0.6)+0.7(stat+syst) pb, consistent with the standard model expectation.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyria A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Observation of the decay Bc+/--->J/psipi+/- and measurement of the Bc+/- mass. PHYSICAL REVIEW LETTERS 2008; 100:182002. [PMID: 18518365 DOI: 10.1103/physrevlett.100.182002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Indexed: 05/26/2023]
Abstract
The Bc+/- meson is observed through the decay Bc+/--->J/psipi+/-, in data corresponding to an integrated luminosity of 2.4 fb(-1) recorded by the Collider Detector at Fermilab II detector at the Fermilab Tevatron. A signal of 108+/-15 candidates is observed, with a significance that exceeds 8sigma. The mass of the Bc+/- meson is measured to be 6275.6+/-2.9(stat)+/-2.5(syst) MeV/c2.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Labarga L, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, MacQueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. First flavor-tagged determination of bounds on mixing-induced CP violation in Bs0 --> J/psiphi decays. PHYSICAL REVIEW LETTERS 2008; 100:161802. [PMID: 18518184 DOI: 10.1103/physrevlett.100.161802] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Indexed: 05/26/2023]
Abstract
This Letter describes the first determination of bounds on the CP-violation parameter 2beta(s) using B(s)(0) decays in which the flavor of the bottom meson at production is identified. The result is based on approximately 2000 B(s)(0)-->J/psiphi decays reconstructed in a 1.35 fb(-1) data sample collected with the CDF II detector using pp collisions produced at the Fermilab Tevatron. We report confidence regions in the two-dimensional space of 2beta(s) and the decay-width difference DeltaGamma. Assuming the standard model predictions of 2beta(s) and DeltaGamma, the probability of a deviation as large as the level of the observed data is 15%, corresponding to 1.5 Gaussian standard deviations.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, MacQueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Search for heavy toplike quarks using lepton plus jets events in 1.96 TeV pp collisions. PHYSICAL REVIEW LETTERS 2008; 100:161803. [PMID: 18518185 DOI: 10.1103/physrevlett.100.161803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2008] [Indexed: 05/26/2023]
Abstract
We present the results of a search for pair production of a new heavy toplike quark t' decaying to a W boson and another quark using the Collider Detector at Fermilab II detector in run II of the Tevatron pp collider. Using a data sample corresponding to 760 pb(-1) of integrated luminosity, we fit the observed spectrum of total transverse energy and reconstructed t' quark mass to a combination of standard model processes and t' pair production. We see no evidence for t't' production, and we infer a lower limit of 256 GeV/c(2) on the mass of the t' at 95% C.L. assuming standard strong couplings for the t'.
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Shin YK, Yoon IY, Han EK, No YM, Hong MC, Yun YD, Jung BK, Chung SH, Choi JB, Cyn JG, Lee YJ, Hong SC. Prevalence of narcolepsy-cataplexy in Korean adolescents. Acta Neurol Scand 2008; 117:273-8. [PMID: 17922892 DOI: 10.1111/j.1600-0404.2007.00930.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Narcolepsy typically begins between adolescence and early adulthood causing severe neuropsychiatric impairments, but few prevalence studies are available on adolescent narcoleptics. In the present study, we investigated the prevalence of narcolepsy-cataplexy in adolescents. METHODS In total 20,407 students, aged 14-19 years, participated in this study. Ullanlinna Narcolepsy Scale (UNS) was applied to all subjects and those with a UNS score of > or =14 were contacted by phone for semi-structured interview. Subjects then suspected of having narcolepsy participated in a laboratory investigation, which included polysomnography and HLA typing, or were interviewed in detail by telephone. RESULTS Three subjects were finally diagnosed as narcolepsy with cataplexy and seven subjects might be diagnosed as narcolepsy without cataplexy. Among three narcoleptics with cataplexy, two subjects were HLA-DQB1*0602 and DRB1*1501 positive, but one subject had no test of HLA typing. The prevalence of narcolepsy with cataplexy in Korean adolescence was thus determined to be 0.015% (95% confidence interval = 0.0-0.0313%). CONCLUSION This epidemiologic study is the first of its type on adolescent narcolepsy to use the International Classification of Sleep Disorders, 2nd edition (ICSD-2) diagnostic criteria. Considering those cases with an onset after adolescence were not included, the prevalence of narcolepsy with cataplexy determined in the present study is comparable with that of other studies in adults.
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Aaltonen T, Abulencia A, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Gerberich H, Gerdes D, Giagu S, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savard P, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Measurement of Lifetime and Decay-Width Difference in B_{s};{0}-->J/psivarphi Decays. PHYSICAL REVIEW LETTERS 2008; 100:121803. [PMID: 18517856 DOI: 10.1103/physrevlett.100.121803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Indexed: 05/26/2023]
Abstract
We measure the mean lifetime tau=2/(Gamma_{L}+Gamma_{H}) and the decay-width difference DeltaGamma=Gamma_{L}-Gamma_{H} of the light and heavy mass eigenstates of the B_{s}{0} meson, B_{sL}{0} and B_{sH}{0}, in B_{s}{0}-->J/psivarphi decays using 1.7 fb;{-1} of data collected with the CDF II detector at the Fermilab Tevatron pp[over ] collider. Assuming CP conservation, a good approximation for the B_{s}{0} system in the standard model, we obtain DeltaGamma=0.076_{-0.063}{+0.059}(stat)+/-0.006(syst) ps{-1} and tau=1.52+/-0.04(stat)+/-0.02(syst) ps, the most precise measurements to date. Our constraints on the weak phase and DeltaGamma are consistent with CP conservation.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, González BA, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyria A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, Denis RS, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Evidence for D0-D(0) mixing using the CDF II detector. PHYSICAL REVIEW LETTERS 2008; 100:121802. [PMID: 18517855 DOI: 10.1103/physrevlett.100.121802] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Indexed: 05/26/2023]
Abstract
We measure the time dependence of the ratio of decay rates for the rare decay D{0}-->K{+}pi{-} to the Cabibbo-favored decay D{0}-->K{-}pi;{+}. A signal of 12.7x10;{3} D{0}-->K{+}pi{-} decays was obtained using the Collider Detector at Fermilab II detector at the Fermilab Tevatron with an integrated luminosity of 1.5 fb;{-1}. We measure the D0-D[over ]{0} mixing parameters (R_{D},y{'},x{'2}), and find that the data are inconsistent with the no-mixing hypothesis with a probability equivalent to 3.8 Gaussian standard deviations.
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Byun HS, Song JK, Kim YR, Piao L, Won M, Park KA, Choi BL, Lee H, Hong JH, Park J, Seok JH, Lee YJ, Kang SW, Hur GM. Caspase-8 has an essential role in resveratrol-induced apoptosis of rheumatoid fibroblast-like synoviocytes. Rheumatology (Oxford) 2008; 47:301-8. [PMID: 18276737 DOI: 10.1093/rheumatology/kem368] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Resveratrol is a naturally occurring polyphenol, which possesses chemotherapeutic potential through its ability to trigger apoptosis. The objective of this study was to investigate the major determinant for the apoptotic cell death induction by resveratrol in fibroblast-like synoviocytes (FLS) derived from patients with RA. METHODS The effect of resveratrol on apoptotic cell death was quantified in a population of subG1 in RA FLS by flow cytometry. The underlying signalling mechanism for apoptotic death was examined by analysing mitochondrial membrane potential, activation of the caspase cascade and translocation of Bid. RESULTS We show that activation of caspase-8 is essential for triggering resveratrol-induced apoptotic signalling via the involvement of the mitochondrial pathway in RA FLS. Our findings also suggest that this enhanced apoptosis caused by resveratrol occurred in RA FLS irrespective of p53 status. Exposure to resveratrol caused extensive apoptotic cell death, along with a caspase-dependent (activation of caspase-9 and -3, poly ADPribose polymerase (PARP) cleavage and mitochondrial cytochrome c release) or caspase-independent [translocation of apoptosis-inducing factor (AIF) to the nucleus] signalling pathway. Analysis of upstream signalling events affected by resveratrol revealed that the activated caspase-8 triggered mitochondrial apoptotic events by inducing Bid cleavage without any alteration in the levels of Bax, Bcl-xL or Bcl2. The caspase-8 inhibitor or over-expression of crmA abrogated cell death induced by resveratrol and prevented processing of the downstream cascade. CONCLUSION The results suggest that resveratrol causes activation of caspase-8, which in turn results in modulation of mitochondrial apoptotic machinery to promote apoptosis of RA FLS.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyria A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Search for Bs0 --> micro+ micro- and B0 --> micro+ micro- decays with 2 fb-1 of pp collisions. PHYSICAL REVIEW LETTERS 2008; 100:101802. [PMID: 18352173 DOI: 10.1103/physrevlett.100.101802] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Indexed: 05/26/2023]
Abstract
We have performed a search for B(s)(0) --> micro(+) micro(-) and B(0) --> micro(+) micro(-) decays in pp collisions at square root s = 1.96 TeV using 2 fb(-1) of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron Collider. The observed number of B(s)(0) and B0 candidates is consistent with background expectations. The resulting upper limits on the branching fractions are B(B(s)0) --> micro(+) micro(-)) <5.8 x 10(-8) and B(B(0) --> micro(+) micro(-))<1.8 x 10(-8) at 95% C.L.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyria A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Measurement of inclusive jet cross sections in Z/gamma*(-->e+e-) + jets production in pp[over ] collisions at square root s = 1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 100:102001. [PMID: 18352174 DOI: 10.1103/physrevlett.100.102001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2007] [Indexed: 05/26/2023]
Abstract
Inclusive jet cross sections in Z/gamma* events, with Z/gamma* decaying into an electron-positron pair, are measured as a function of jet transverse momentum and jet multiplicity in pp[over ] collisions at square root s = 1.96 TeV with the upgraded Collider Detector at Fermilab in run II, based on an integrated luminosity of 1.7 fb(-1). The measurements cover the rapidity region |y(jet)|<2.1 and the transverse momentum range p(T)(jet)>30 GeV/c. Next-to-leading order perturbative QCD predictions are in good agreement with the measured cross sections.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Genser K, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Liss TM, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, MacQueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Mangano ML, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyria A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, Denis RS, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. First measurement of W boson production in association with a single Charm quark in pp collisions at sqrt(s)=1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 100:091803. [PMID: 18352698 DOI: 10.1103/physrevlett.100.091803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2007] [Indexed: 05/26/2023]
Abstract
We present the first measurement of the production cross section of a W boson with a single charm quark (c) in pp collisions at sqrt(s)=1.96 TeV, using soft muon tagging of c jets. In a data sample of approximately 1.8 fb(-1), recorded with the Collider Detector at Fermilab II detector at the Fermilab Tevatron, we select events with W+1 or 2 jets. We use the charge correlation between the W and the muon from the semileptonic decay of a charm hadron to extract the Wc signal. We measure sigma Wc(PTc >20 GeV/c,|eta c|<1.5) x BR(W-->l nu)=9.8+/-3.2 pb, in agreement with theoretical expectations.
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Aaltonen T, Abulencia A, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Gerberich H, Gerdes D, Giagu S, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savard P, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Observation of orbitally excited B(s) mesons. PHYSICAL REVIEW LETTERS 2008; 100:082001. [PMID: 18352616 DOI: 10.1103/physrevlett.100.082001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2007] [Indexed: 05/26/2023]
Abstract
We report the observation of two narrow resonances consistent with states of orbitally excited (L=1) B_(s) mesons using 1 fb;(-1) of pp[over ] collisions at sqrt[s]=1.96 TeV collected with the Collider Detector at Fermilab II detector at the Fermilab Tevatron. We use two-body decays into K- and B+ mesons reconstructed as B(+)-->J/psiK(+), J/psi-->mu(+)mu(-) or B(+)-->D[over ](0)pi(+), D[over ](0)-->K(+)pi(-). We deduce the masses of the two states to be m(B_(s1))=5829.4+/-0.7 MeV/c(2) and m(B_(s2);(*))=5839.6+/-0.7 MeV/c;(2).
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, González BA, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Beecher D, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Almenar CC, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Giovanni GPD, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, da Costa JG, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Fernandez PM, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Griso SP, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyria A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, Denis RS, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Direct measurement of the W Boson width in ppover collisions at square roots = 1.96 TeV. PHYSICAL REVIEW LETTERS 2008; 100:071801. [PMID: 18352540 DOI: 10.1103/physrevlett.100.071801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Indexed: 05/26/2023]
Abstract
A direct measurement of the total decay width of the W boson Gamma(W) is presented using 350 pb(-1) of data from pp[over ] collisions at square root s = 1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. The width is determined by normalizing predicted signal and background distributions to 230 185 W candidates decaying to enu and micronu in the transverse-mass region 50<M(T)<90 GeV and then fitting the predicted shape to 6055 events in the high-M(T) region, 90<M(T)<200 GeV. The result is Gamma(W)=2032 +/- 45(stat)+/-57(syst) MeV, consistent with the standard model expectation.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, DeCecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, MacQueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Saarikko H, Safonov A, Sakumoto WK, Salamanna G, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt EE, Schmidt MA, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scott AL, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyria A, Shalhout SZ, Shapiro MD, Shears T, Shepard PF, Sherman D, Shimojima M, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter AJ, Slaunwhite J, Sliwa K, Smith JR, Snider FD, Snihur R, Soderberg M, Soha A, Somalwar S, Sorin V, Spalding J, Spinella F, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Stuart D, Suh JS, Sukhanov A, Sun H, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng PK, Terashi K, Thom J, Thompson AS, Thompson GA, Thomson E, Tipton P, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Tourneur S, Trischuk W, Tu Y, Turini N, Ukegawa F, Uozumi S, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner RG, Wagner RL, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams G, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne SM, Yagil A, Yamamoto K, Yamaoka J, Yamashita T, Yang C, Yang UK, Yang YC, Yao WM, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanello L, Zanetti A, Zaw I, Zhang X, Zheng Y, Zucchelli S. Cross-section-constrained top-quark mass measurement from dilepton events at the Tevatron. PHYSICAL REVIEW LETTERS 2008; 100:062005. [PMID: 18352461 DOI: 10.1103/physrevlett.100.062005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Indexed: 05/26/2023]
Abstract
We report the first top-quark mass measurement that uses a cross-section constraint to improve the mass determination. This measurement is made with a dilepton tt event candidate sample collected with the Collider Detector II at Fermilab. From a data sample corresponding to an integrated luminosity of 1.2 fb(-1), we measure a top-quark mass of 170.7(-3.9)(+4.2)(stat)+/-2.6(syst)+/-2.4(theory) GeV/c(2). The measurement without the cross-section constraint is 169.7(-4.9)(+5.2)(stat)+/-3.1(syst) GeV/c(2).
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Kim IS, Lim YS, Lee HC, Suh DJ, Lee YJ, Lee SG. Pre-operative transarterial chemoembolization for resectable hepatocellular carcinoma adversely affects post-operative patient outcome. Aliment Pharmacol Ther 2008; 27:338-45. [PMID: 18047564 DOI: 10.1111/j.1365-2036.2007.03580.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Long-term outcomes after hepatic resection for hepatocellular carcinoma are not satisfactory because of high recurrence rates. Aim To assess whether a single session of pre-operative transarterial chemoembolization affects post-operative outcome. METHODS We analysed outcomes retrospectively in 334 consecutive patients who underwent hepatic resection for hepatocellular carcinoma, initially judged resectable. Ninety-seven of these patients had each undergone a single session of pre-operative transarterial chemoembolization (transarterial chemoembolization + hepatic resection group), whereas 237 had not (hepatic resection group). RESULTS Most clinicopathological characteristics were similar in the two groups. The overall survival rate was significantly higher in the hepatic resection than in the transarterial chemoembolization + hepatic resection group (P = 0.011), whereas their disease-free survival rates were comparable (P = 0.67). The overall and disease-free survival rates of the transarterial chemoembolization + hepatic resection group with incomplete tumour necrosis were significantly lower than those of the hepatic resection group (P < 0.001 and P = 0.006, respectively). Multivariate analysis showed that pre-operative transarterial chemoembolization, serum alpha-fetoprotein elevation (>1000 ng/mL), tumour size (>5 cm) and vascular invasion were independent risk factors for poor overall survival after hepatic resection. CONCLUSIONS A single session of pre-operative transarterial chemoembolization for initially resectable hepatocellular carcinoma worsens overall survival rate. It may also increase the risk of tumour recurrence in patients who achieve incomplete tumour necrosis.
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Aaltonen T, Adelman J, Akimoto T, Albrow MG, González BA, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Aoki M, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzi-Bacchetta P, Azzurri P, Bacchetta N, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Baroiant S, Bartsch V, Bauer G, Beauchemin PH, Bedeschi F, Bednar P, Behari S, Bellettini G, Bellinger J, Belloni A, Benjamin D, Beretvas A, Beringer J, Berry T, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair RE, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavalli-Sforza M, Cerri A, Cerrito L, Chang SH, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Choudalakis G, Chuang SH, Chung K, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Cooper B, Copic K, Cordelli M, Cortiana G, Crescioli F, Almenar CC, Cuevas J, Culbertson R, Cully JC, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lentdecker G, De Lorenzo G, Dell'Orso M, Demortier L, Deng J, Deninno M, De Pedis D, Derwent PF, Di Giovanni GP, Dionisi C, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Erbacher R, Errede D, Errede S, Eusebi R, Fang HC, Farrington S, Fedorko WT, Feild RG, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Forrester S, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia JE, Garfinkel AF, Gerberich H, Gerdes D, Giagu S, Giakoumopolou V, Giannetti P, Gibson K, Gimmell JL, Ginsburg CM, Giokaris N, Giordani M, Giromini P, Giunta M, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Han JY, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr RF, Harris RM, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill CS, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu SC, Huffman BT, Hughes RE, Husemann U, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, Iyutin B, James E, Jayatilaka B, Jeans D, Jeon EJ, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Jung JE, Junk TR, Kamon T, Kar D, Karchin PE, Kato Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Koay SA, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kraus J, Kreps M, Kroll J, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhlmann SE, Kuhr T, Kulkarni NP, Kusakabe Y, Kwang S, Laasanen AT, Lai S, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee J, Lee J, Lee YJ, Lee SW, Lefèvre R, Leonardo N, Leone S, Levy S, Lewis JD, Lin C, Lin CS, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu T, Lockyer NS, Loginov A, Loreti M, Lovas L, Lu RS, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, MacQueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis A, Margaroli F, Marino C, Marino CP, Martin A, Martin M, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzemer S, Menzione A, Merkel P, Mesropian C, Messina A, Miao T, Miladinovic N, Miles J, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello M, Fernandez PM, Mülmenstädt J, Mukherjee A, Muller T, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oh SH, Oh YD, Oksuzian I, Okusawa T, Oldeman R, Orava R, Osterberg K, Griso SP, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov AA, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Piedra J, Pinera L, Pitts K, Plager C, Pondrom L, Portell X, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Reisert B, Rekovic V, Renton P, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rogers E, Rolli S, Roser R, Rossi M, 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Search for standard model Higgs bosons produced in association with W bosons. PHYSICAL REVIEW LETTERS 2008; 100:041801. [PMID: 18352260 DOI: 10.1103/physrevlett.100.041801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2007] [Indexed: 05/26/2023]
Abstract
We report on the results of a search for standard model Higgs bosons produced in association with W bosons from pp[over] collisions at sqrt[s]=1.96 TeV. The search uses a data sample corresponding to approximately 1 fb(-1) of integrated luminosity. Events consistent with the W-->lnu and H-->bb[over] signature are selected by triggering on a high-p(T) electron or muon candidate and tagging one or two of the jet candidates as having originated from b quarks. A neural network filter rejects a fraction of tagged charm and light-flavor jets, increasing the b-jet purity in the sample. We observe no excess lnubb[over] production beyond the background expectation, and we set 95% confidence level upper limits on the production cross section times branching fraction sigma(pp[over]-->WH)Br(H-->bb[over]) ranging from 3.9 to 1.3 pb, for specific Higgs boson mass hypotheses in the range 110 to 150 GeV/c2, respectively.
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