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Huang S, Griffin E, Cai J, Xin B, Tong J, Fu Y, Kravets V, Peeters FM, Lozada-Hidalgo M. Gate-controlled suppression of light-driven proton transport through graphene electrodes. Nat Commun 2023; 14:6932. [PMID: 37907470 PMCID: PMC10618495 DOI: 10.1038/s41467-023-42617-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/17/2023] [Indexed: 11/02/2023] Open
Abstract
Recent experiments demonstrated that proton transport through graphene electrodes can be accelerated by over an order of magnitude with low intensity illumination. Here we show that this photo-effect can be suppressed for a tuneable fraction of the infra-red spectrum by applying a voltage bias. Using photocurrent measurements and Raman spectroscopy, we show that such fraction can be selected by tuning the Fermi energy of electrons in graphene with a bias, a phenomenon controlled by Pauli blocking of photo-excited electrons. These findings demonstrate a dependence between graphene's electronic and proton transport properties and provide fundamental insights into molecularly thin electrode-electrolyte interfaces and their interaction with light.
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Affiliation(s)
- S Huang
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - E Griffin
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.
| | - J Cai
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
- College of Advanced Interdisciplinary Studies, National University of Defence Technology, Changsha, Hunan, 410073, China
| | - B Xin
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - J Tong
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - Y Fu
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - V Kravets
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
| | - F M Peeters
- Departamento de Fisica, Universidade Federal do Ceara, 60455-900, Fortaleza, Ceara, Brazil
- Departement Fysica, Universiteit Antwerpen, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - M Lozada-Hidalgo
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.
- Research and Innovation Center for graphene and 2D materials (RIC2D), Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates.
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2
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Wahab OJ, Daviddi E, Xin B, Sun PZ, Griffin E, Colburn AW, Barry D, Yagmurcukardes M, Peeters FM, Geim AK, Lozada-Hidalgo M, Unwin PR. Proton transport through nanoscale corrugations in two-dimensional crystals. Nature 2023; 620:782-786. [PMID: 37612394 PMCID: PMC10447238 DOI: 10.1038/s41586-023-06247-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/23/2023] [Indexed: 08/25/2023]
Abstract
Defect-free graphene is impermeable to all atoms1-5 and ions6,7 under ambient conditions. Experiments that can resolve gas flows of a few atoms per hour through micrometre-sized membranes found that monocrystalline graphene is completely impermeable to helium, the smallest atom2,5. Such membranes were also shown to be impermeable to all ions, including the smallest one, lithium6,7. By contrast, graphene was reported to be highly permeable to protons, nuclei of hydrogen atoms8,9. There is no consensus, however, either on the mechanism behind the unexpectedly high proton permeability10-14 or even on whether it requires defects in graphene's crystal lattice6,8,15-17. Here, using high-resolution scanning electrochemical cell microscopy, we show that, although proton permeation through mechanically exfoliated monolayers of graphene and hexagonal boron nitride cannot be attributed to any structural defects, nanoscale non-flatness of two-dimensional membranes greatly facilitates proton transport. The spatial distribution of proton currents visualized by scanning electrochemical cell microscopy reveals marked inhomogeneities that are strongly correlated with nanoscale wrinkles and other features where strain is accumulated. Our results highlight nanoscale morphology as an important parameter enabling proton transport through two-dimensional crystals, mostly considered and modelled as flat, and indicate that strain and curvature can be used as additional degrees of freedom to control the proton permeability of two-dimensional materials.
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Affiliation(s)
- O J Wahab
- Department of Chemistry, University of Warwick, Coventry, UK
| | - E Daviddi
- Department of Chemistry, University of Warwick, Coventry, UK
| | - B Xin
- Department of Physics and Astronomy, The University of Manchester, Manchester, UK
- National Graphene Institute, The University of Manchester, Manchester, UK
| | - P Z Sun
- Department of Physics and Astronomy, The University of Manchester, Manchester, UK
- National Graphene Institute, The University of Manchester, Manchester, UK
| | - E Griffin
- Department of Physics and Astronomy, The University of Manchester, Manchester, UK
- National Graphene Institute, The University of Manchester, Manchester, UK
| | - A W Colburn
- Department of Chemistry, University of Warwick, Coventry, UK
| | - D Barry
- Department of Physics and Astronomy, The University of Manchester, Manchester, UK
| | - M Yagmurcukardes
- Department of Photonics, Izmir Institute of Technology, Urla, Turkey
| | - F M Peeters
- Departement Fysica, Universiteit Antwerpen, Antwerp, Belgium
- Departamento de Fisica, Universidade Federal do Ceara, Fortaleza, Brazil
| | - A K Geim
- Department of Physics and Astronomy, The University of Manchester, Manchester, UK.
- National Graphene Institute, The University of Manchester, Manchester, UK.
| | - M Lozada-Hidalgo
- Department of Physics and Astronomy, The University of Manchester, Manchester, UK.
- National Graphene Institute, The University of Manchester, Manchester, UK.
| | - P R Unwin
- Department of Chemistry, University of Warwick, Coventry, UK.
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3
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Bai Q, Chen Y, Xiao X, Chang H, Xin B, Jia L, Li J, Wang Z, Yu C, Xiong H, Zhou X. 203P MET gene copy number heterogeneity in non-small cell lung cancer patients resistant to EGFR-TKIs. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00456-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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4
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Cai J, Griffin E, Guarochico-Moreira VH, Barry D, Xin B, Yagmurcukardes M, Zhang S, Geim AK, Peeters FM, Lozada-Hidalgo M. Wien effect in interfacial water dissociation through proton-permeable graphene electrodes. Nat Commun 2022; 13:5776. [PMID: 36182944 PMCID: PMC9526707 DOI: 10.1038/s41467-022-33451-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/20/2022] [Indexed: 11/09/2022] Open
Abstract
Strong electric fields can accelerate molecular dissociation reactions. The phenomenon known as the Wien effect was previously observed using high-voltage electrolysis cells that produced fields of about 107 V m-1, sufficient to accelerate the dissociation of weakly bound molecules (e.g., organics and weak electrolytes). The observation of the Wien effect for the common case of water dissociation (H2O [Formula: see text] H+ + OH-) has remained elusive. Here we study the dissociation of interfacial water adjacent to proton-permeable graphene electrodes and observe strong acceleration of the reaction in fields reaching above 108 V m-1. The use of graphene electrodes allows measuring the proton currents arising exclusively from the dissociation of interfacial water, while the electric field driving the reaction is monitored through the carrier density induced in graphene by the same field. The observed exponential increase in proton currents is in quantitative agreement with Onsager's theory. Our results also demonstrate that graphene electrodes can be valuable for the investigation of various interfacial phenomena involving proton transport.
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Affiliation(s)
- J Cai
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.,College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, Hunan, 410073, China
| | - E Griffin
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
| | - V H Guarochico-Moreira
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.,Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias Naturales y Matemáticas, P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - D Barry
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
| | - B Xin
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
| | - M Yagmurcukardes
- Departement Fysica, Universiteit Antwerpen, Groenenborgerlaan 171, B-2020, Antwerp, Belgium.,Department of Photonics, Izmir Institute of Technology, 35430, Izmir, Urla, Turkey
| | - S Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - A K Geim
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.,Centre for Advanced 2D Materials, National University of Singapore, Singapore, 117546, Singapore
| | - F M Peeters
- Departement Fysica, Universiteit Antwerpen, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - M Lozada-Hidalgo
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK. .,Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.
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Lu S, Xin B, Deng N, Wang L, Wang W. Investigation of cross-sectional image analysis method to determine the blending ratio of polyester/cotton yarn. J Microsc 2020; 279:16-25. [PMID: 32266723 DOI: 10.1111/jmi.12892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 01/09/2020] [Accepted: 03/29/2020] [Indexed: 11/30/2022]
Abstract
It has been considered as a great challenge to identify the blending ratio of polyester/cotton yarn in the field of textile industry. A new digital cross-sectional image processing method based on geometrical shape analysis is proposed to improve the measurement accuracy of polyester/cotton blend ratio. A self-developed microscope image capturing system is established to digitalise the cross-sectional images of polyester/cotton blended yarn. One set of image preprocessing algorithm is developed to conduct greyscale inversion, median filtering denoising and binarisation. The specially designed edge detection algorithm is used to identify the continuous profile of fibres. Finally, the roundness value of the cross-sectional fibre is calculated based on the proposed roundness algorithm, it can be used to identify the polyester/cotton fibres and calculate the blending ratio of them. Our experimental results show that the new digital analysis method proposed in this paper is feasible for the measurement of polyester/cotton blended ratio; therefore, it has a good application prospect in the field of textile quality control, including the development of new equipment, methods and standards.
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Affiliation(s)
- S Lu
- School of Electrical Electronic Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - B Xin
- School of Fashion Technology, Shanghai University of Engineering Science, Shanghai, China
| | - N Deng
- School of Electrical Electronic Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - L Wang
- School of Electrical Electronic Engineering, Shanghai University of Engineering Science, Shanghai, China
| | - W Wang
- School of Electrical Electronic Engineering, Shanghai University of Engineering Science, Shanghai, China
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6
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Xin B, Cruz Marino T, Szekely J, Leblanc J, Cechner K, Sency V, Wensel C, Barabas M, Therriault V, Wang H. Novel DNMT3A germline mutations are associated with inherited Tatton-Brown-Rahman syndrome. Clin Genet 2017; 91:623-628. [PMID: 27701732 DOI: 10.1111/cge.12878] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 09/27/2016] [Accepted: 09/28/2016] [Indexed: 12/24/2022]
Abstract
Tatton-Brown-Rahman syndrome (TBRS) was recently described in 13 isolated cases with de novo mutations in the DNMT3A gene. This autosomal dominant condition is characterized by tall stature, intellectual disability and a distinctive facial appearance. Here, we report six cases of inherited TBRS caused by novel DNMT3A germline mutations. The affected individuals belong to two sib-ships: four from an Old Order Amish family in America and two from a French Canadian family in Canada. All of them presented with characteristic features of TBRS, including dysmorphic facial features, increased height, intellectual disability, and variable additional features. We performed clinical exome sequencing and identified two mutations in the DNMT3A gene, a c.2312G>A (p.Arg771Gln) missense mutation in the Amish family and a c.2296_2297delAA (p.Lys766Glufs*15) small deletion in the French Canadian family. Parental DNA analysis by Sanger sequencing revealed that the Amish mutation was inherited from the healthy mosaic father. This study reflects the first cases with inherited TBRS and expands the phenotypic spectrum of TBRS.
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Affiliation(s)
- B Xin
- DDC Clinic Center for Special Needs Children, Middlefield, OH, USA
| | - T Cruz Marino
- Department of Medical Biology, CIUSSS Saguenay Lac-St-Jean, Chicoutimi, Quebec, Canada
| | - J Szekely
- DDC Clinic Center for Special Needs Children, Middlefield, OH, USA
| | - J Leblanc
- Department of Medical Biology, CIUSSS Saguenay Lac-St-Jean, Chicoutimi, Quebec, Canada
| | - K Cechner
- DDC Clinic Center for Special Needs Children, Middlefield, OH, USA
| | - V Sency
- DDC Clinic Center for Special Needs Children, Middlefield, OH, USA
| | - C Wensel
- DDC Clinic Center for Special Needs Children, Middlefield, OH, USA
| | - M Barabas
- Department of Cardiology, CIUSSS Saguenay Lac-St-Jean, Chicoutimi, Quebec, Canada
| | - V Therriault
- Manicouagan Familial Medicine Unit, CISSS Côte-Nord, Baie-Comeau, Quebec, Canada
| | - H Wang
- DDC Clinic Center for Special Needs Children, Middlefield, OH, USA.,Department of Pediatrics, Rainbow Babies & Children's Hospital, Cleveland, OH, USA.,Department of Molecular Cardiology, Cleveland Clinic, Cleveland, OH, USA
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7
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Wang H, Wang A, Wang D, Bright A, Sency V, Zhou A, Xin B. Early growth and development impairments in patients with ganglioside GM3 synthase deficiency. Clin Genet 2016; 89:625-9. [DOI: 10.1111/cge.12703] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 11/18/2015] [Accepted: 11/27/2015] [Indexed: 11/28/2022]
Affiliation(s)
- H. Wang
- DDC Clinic Center for Special Needs Children; Middlefield OH USA
- Department of Pediatrics; Case Western Reserve University School of Medicine; Cleveland OH USA
- Department of Pediatrics; Rainbow Babies & Children's Hospital; Cleveland OH USA
- Department of Molecular Cardiology; Cleveland Clinic; Cleveland OH USA
| | - A. Wang
- DDC Clinic Center for Special Needs Children; Middlefield OH USA
| | - D. Wang
- DDC Clinic Center for Special Needs Children; Middlefield OH USA
| | - A. Bright
- DDC Clinic Center for Special Needs Children; Middlefield OH USA
| | - V. Sency
- DDC Clinic Center for Special Needs Children; Middlefield OH USA
| | - A. Zhou
- Department of Chemistry; Cleveland State University; Cleveland OH USA
| | - B. Xin
- DDC Clinic Center for Special Needs Children; Middlefield OH USA
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Bi Y, Tong GY, Yang HJ, Cai MY, Ma JH, Liang J, Xin B, Miao H, Peng ZH, Zhu DL. The beneficial effect of metformin on β-cell function in non-obese Chinese subjects with newly diagnosed type 2 diabetes. Diabetes Metab Res Rev 2013; 29:664-72. [PMID: 23955995 DOI: 10.1002/dmrr.2443] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 07/08/2013] [Accepted: 07/14/2013] [Indexed: 01/15/2023]
Abstract
AIM Studies with metformin suggest a favourable change in β-cell function over sulphonylureas in the early course of obese type 2 diabetes mellitus (T2DM), but it remains unclear whether a similar effect is observed in non-obese individuals. Here we investigated the effects of metformin or glipizide gastrointestinal therapeutics system extended-release formulation (GITS) on β-cell function in non-obese patients with newly diagnosed T2DM. METHODS A total of 160 newly diagnosed patients with fasting glucose 7.0-13.0 mmol/L and body mass index <30 kg/m(2) from five centres in China were randomized to metformin or glipizide GITS for 24 weeks. Early insulin secretion [the ratio of area under the curve (AUC) of insulin to glucose during 0-30 min (InsAUC30 /GluAUC30 )] and insulin sensitivity [Matsuda index (ISIM )] were assessed during the standard meal tolerance test before and after therapy. Plasma glucagon-like peptide-1(GLP-1) and glucagon levels were also measured. RESULTS Metformin improved InsAUC30 /GluAUC30 significantly (from 8.1 ± 0.6 pmol/mmol to 10.7 ± 0.7 pmol/mmol, p < 0.05), comparable to results with glipizide GITS. In the metformin-treated lean (body mass index < 25 kg/m(2) ) subgroup, the increase in ISIM was not significant, but the improvement in InsAUC30 /GluAUC30 was of great magnitude. Increased GLP-1 responses during meal tolerance test and decreased fasting glucagon level were observed after metformin treatment. Correlation analysis showed that the improvement of InsAUC30 /GluAUC30 was associated with the changes in HbA1c (r = -0.374, p = 0.000), ISIM (r = 0.356, p = 0.001), and ΔGLP-10-30 (r = 0.225, p = 0.02). CONCLUSIONS Metformin improved β-cell function in non-obese subjects with newly diagnosed T2DM, which was partly independent of the change in insulin sensitivity in these subjects. This study provides evidence-based data to support metformin use in non-obese patients with T2DM as the first-line agent, which can improve both insulin sensitivity and β-cell function.
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Affiliation(s)
- Y Bi
- Department of Endocrinology, Drum Tower Hospital affiliated to Nanjing University Medical School, Nanjing, China; Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
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Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Xiao T, Martin L, Powell A, Wilkinson G, Mendez H, Asner DM, Tatishvili G, Ge JY, Huang GS, Miller DH, Pavlunin V, Shipsey IPJ, Xin B, Adams GS, Hu D, Moziak B, Napolitano J, Ecklund KM, Insler J, Muramatsu H, Park CS, Pearson LJ, Thorndike EH, Ricciardi S, Thomas C, Artuso M, Blusk S, Mountain R, Skwarnicki T, Stone S, Zhang LM, Bonvicini G, Cinabro D, Lincoln A, Smith MJ, Zhou P, Zhu J, Naik P, Rademacker J, Edwards KW, Randrianarivony K, Briere RA, Vogel H, Onyisi PUE, Rosner JL, Alexander JP, Cassel DG, Das S, Ehrlich R, Gibbons L, Gray SW, Hartill DL, Heltsley BK, Kreinick DL, Kuznetsov VE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Sun WM, Yelton J, Rubin P, Lowrey N, Mehrabyan S, Selen M, Wiss J, Libby J, Kornicer M, Mitchell RE, Tarbert CM, Besson D, Pedlar TK, Cronin-Hennessy D, Hietala J. First measurement of the form factors in the decays D0 → ρ- e+ ν(e) and D+ → ρ0 e+ ν(e). Phys Rev Lett 2013; 110:131802. [PMID: 23581310 DOI: 10.1103/physrevlett.110.131802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Indexed: 06/02/2023]
Abstract
The beauty to up quark coupling constant |V(ub)| can be extracted from B → ρ e+ ν(e) combined with the form factors for D → K* e+ ν(e) and B → V ℓ+ ℓ- and D → ρ e+ ν(e). Using the entire CLEO-c ψ(3770) → DD event sample, corresponding to an integrated luminosity of 818 pb(-1) and approximately 5.4×10(6) DD events, we measure the form factors for the decays D0 → ρ- e+ ν(e) and D+ → ρ0 e+ ν(e) for the first time and the branching fractions with improved precision. A four-dimensional unbinned maximum likelihood fit determines the form factor ratios to be V(0)/A1(0)=1.48±0.15±0.05 and A2(0)/A1(0)=0.83±0.11±0.04. Assuming Cabibbo-Kobayashi-Maskawa unitarity, the known D meson lifetimes, and our measured branching fractions we obtain the form factor normalizations A1(0), A2(0), and V(0). We also present a measurement of the branching fraction for D+ → ω e+ ν(e) with improved precision.
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Affiliation(s)
- S Dobbs
- Northwestern University, Evanston, Illinois 60208, USA
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Abstract
Cockayne syndrome (CS) is a rare autosomal recessive disorder characterized by progressive multisystem degeneration and segmental premature aging. Mutations in the DNA repair gene ERCC6 are responsible for the majority of CS cases reported. In this study, we identified 4 patients presenting with CS from 2 Old Order Amish families. Sequence analysis of the ERCC6 gene revealed 2 novel mutations associated with the disorder in these patients. The patients from family 1 were homozygous for a splice-site mutation, c.2709 + 1G>T, in intron 14 of ERCC6, whereas the patients from family 2 were compound heterozygous for c.2709 + 1G>T and a short deletion in exon 5 (c.1293_1320del). Our findings provide evidence of allelic heterogeneity in Old Order Amish, which is extremely uncommon for a rare condition in an isolated founder population.
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Affiliation(s)
- B Xin
- DDC Clinic for Special Needs Children, Middlefield, Ohio, USA
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11
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Cronin-Hennessy D, Hietala J, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Xiao T, Martin L, Powell A, Wilkinson G, Asner DM, Tatishvili G, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Hu D, Moziak B, Napolitano J, Ecklund KM, Insler J, Muramatsu H, Park CS, Pearson LJ, Thorndike EH, Ricciardi S, Thomas C, Artuso M, Blusk S, Mountain R, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Lincoln A, Smith MJ, Zhou P, Zhu J, Naik P, Rademacker J, Edwards KW, Randrianarivony K, Briere RA, Vogel H, Onyisi PUE, Rosner JL, Alexander JP, Cassel DG, Das S, Ehrlich R, Gibbons L, Gray SW, Hartill DL, Heltsley BK, Kreinick DL, Kuznetsov VE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Sun WM, Yelton J, Rubin P, Lowrey N, Mehrabyan S, Selen M, Wiss J, Libby J, Kornicer M, Mitchell RE, Shepherd MR, Tarbert CM, Besson D, Pedlar TK. Observation of the Dalitz decayDs*+→Ds+e+e−. Int J Clin Exp Med 2012. [DOI: 10.1103/physrevd.86.072005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Pedlar TK, Cronin-Hennessy D, Hietala J, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Xiao T, Martin L, Powell A, Wilkinson G, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Hu D, Moziak B, Napolitano J, Ecklund KM, Insler J, Muramatsu H, Park CS, Pearson LJ, Thorndike EH, Ricciardi S, Thomas C, Artuso M, Blusk S, Mountain R, Skwarnicki T, Stone S, Zhang LM, Bonvicini G, Cinabro D, Lincoln A, Smith MJ, Zhou P, Zhu J, Naik P, Rademacker J, Asner DM, Edwards KW, Randrianarivony K, Tatishvili G, Briere RA, Vogel H, Onyisi PUE, Rosner JL, Alexander JP, Cassel DG, Das S, Ehrlich R, Gibbons L, Gray SW, Hartill DL, Heltsley BK, Kreinick DL, Kuznetsov VE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Sun WM, Yelton J, Rubin P, Lowrey N, Mehrabyan S, Selen M, Wiss J, Libby J, Kornicer M, Mitchell RE, Shepherd MR, Tarbert CM, Besson D. Observation of the h(c)(1P) Using e+ e- collisions above the DD threshold. Phys Rev Lett 2011; 107:041803. [PMID: 21866994 DOI: 10.1103/physrevlett.107.041803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Indexed: 05/31/2023]
Abstract
Using 586 pb(-1) of e+ e- collision data at E(c.m.) = 4170 MeV, produced at the Cornell Electron Storage Ring collider and collected with the CLEO-c detector, we observe the process e+ e- → π+ π- h(c)(1P). We measure its cross section to be 15.6±2.3±1.9±3.0 pb, where the third error is due to the external uncertainty on the branching fraction of ψ(2S) → π0 h(c)(1P), which we use for normalization. We also find evidence for e+ e- → ηh(c)(1P) at 4170 MeV at the 3σ level and see hints of a rise in the e+ e- → π+ π- h(c)(1P) cross section at 4260 MeV.
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Affiliation(s)
- T K Pedlar
- Luther College, Decorah, Iowa 52101, USA
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13
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Affiliation(s)
- LL Liu
- Laboratory for Developmental Immunology, School of Life Science, Shandong University,
Jinan 250100
| | - XM Du
- Laboratory Medicine of Jinan Military Hospital,
Jinan 250031
| | - Z Wang
- College of Chemistry and Life Science, Shenyang Normal University,
Shenyang 110034, China
| | - BJ Wu
- Laboratory for Developmental Immunology, School of Life Science, Shandong University,
Jinan 250100
| | - M Jin
- Laboratory for Developmental Immunology, School of Life Science, Shandong University,
Jinan 250100
| | - B Xin
- Laboratory for Developmental Immunology, School of Life Science, Shandong University,
Jinan 250100
| | - D Wang
- Laboratory for Developmental Immunology, School of Life Science, Shandong University,
Jinan 250100
| | - ZL Bai
- Laboratory for Developmental Immunology, School of Life Science, Shandong University,
Jinan 250100
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14
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Abstract
Glucose-galactose malabsorption (GGM) is an autosomal recessive disease with life-threatening newborn diarrhea caused by mutations in the Na(+) /glucose cotransporter gene SLC5A1. Because of its rarity, the clinical course of the disease has not been well studied. Here, we report 33 patients with GGM from a large Old Order Amish pedigree and the associated mutations in SLC5A1 gene. Clinically, all affected individuals presented with classic watery diarrhea and dehydration. The increased bowel sounds, distended abdomen, vigorous nursing regardless of their illness, and irritability and apathy were also noted as part of the initial presentation. Patients underwent a dramatic turnaround with an immediate cease of the diarrhea and a quick rehydration if they were correctly diagnosed and adequately managed, followed by a normal growth and development pattern afterwards; whereas a prolonged clinical course would follow if the disease was not recognized. Sequence analysis of the 15 protein-coding exons and the corresponding exon-intron boundaries of SLC5A1 gene revealed four homozygous missense mutations, c.152A>G (p.N51S), c.1231G>A (p.A411T), c.1673G>A (p.R558H), and c.1845C>G (p.H615Q), that co-segregate with the GGM phenotype in all of the affected individuals. These findings suggest that founder effect of the SLC5A1 mutations associated with the disease in Amish and a population specific genetic testing is in need to pursue an early diagnosis which is critical for a favorable outcome.
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Affiliation(s)
- B Xin
- DDC Clinic for Special Needs Children, 14567 Madison Road, Middlefield, OH 44062, USA.
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15
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Wong PC, Crain EJ, Watson CA, Xin B. Favorable therapeutic index of the direct factor Xa inhibitors, apixaban and rivaroxaban, compared with the thrombin inhibitor dabigatran in rabbits. J Thromb Haemost 2009; 7:1313-20. [PMID: 19500242 DOI: 10.1111/j.1538-7836.2009.03503.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Apixaban is an oral, direct factor Xa (FXa) inhibitor in late-stage clinical development. This study assessed effects of the direct FXa inhibitors, apixaban and rivaroxaban, vs. the direct thrombin inhibitor, dabigatran, on venous thrombosis (VT), bleeding time (BT) and clotting times in rabbits. METHODS We induced the formation of non-occlusive thrombus in VT models by placing threads in the vena cava, and induced bleeding by the incision of cuticles in anesthetized rabbits. Apixaban, rivaroxaban and dabigatran were infused IV to achieve a stable plasma level. Clotting times, including the activated partial thromboplastin time (aPTT), prothrombin time (PT), modified PT (mPT) and thrombin time (TT), were measured. RESULTS Apixaban, rivaroxaban and dabigatran exhibited dose-related efficacy in preventing VT with EC(50) of 65, 33 and 194 nm, respectively. At doses for 80% reduction of control thrombus, apixaban, rivaroxaban and dabigatran prolonged BT by 1.13 +/- 0.02-, 1.9 +/- 0.1-* and 4.4 +/- 0.4-fold*, respectively (*P < 0.05, vs. apixaban). In the treatment model, these inhibitors equally prevented growth of a preformed thrombus. Antithrombotic doses of apixaban and rivaroxaban prolonged aPTT and PT by <3-fold with no effect on TT. Dabigatran was > or = 50-fold more potent in prolonging TT than aPTT and PT. Of the clotting assays studied, apixaban, rivaroxaban and dabigatran responded the best to mPT. CONCLUSION Comparable antithrombotic efficacy was observed between apixaban, rivaroxaban and dabigatran in the prevention and treatment of VT in rabbits. Apixaban and rivaroxaban exhibited lower BT compared with dabigatran at equivalent antithrombotic doses. The clinical significance of these findings remains to be determined.
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Affiliation(s)
- P C Wong
- Thrombosis Research, Bristol-Myers Squibb Company, Pennington, NJ 08534, USA.
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16
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Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Selen M, White EJ, Wiss J. Observation of D+ --> etae + nue. Phys Rev Lett 2009; 102:081801. [PMID: 19257732 DOI: 10.1103/physrevlett.102.081801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2008] [Indexed: 05/27/2023]
Abstract
Using a 281 pb-1 data sample collected at the psi(3770) resonance with the CLEO-c detector at the Cornell Electron Storage Ring, we report the first observation of D+ --> etae + nue. We also set upper limits for D+ --> eta'e + nue and D + --> varphie + nue that are about 2 orders of magnitude more restrictive than those obtained by previous experiments.
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Affiliation(s)
- R E Mitchell
- Indiana University, Bloomington, Indiana 47405, USA
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17
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Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Robichaud AN, Tatishvili G, Briere RA, Vogel H, Onyisi PUE, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Yelton J, Rubin P, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tan BJY, Tomaradze A, Libby J, Martin L, Powell A, Wilkinson G, Mendez H, Ge JY, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Ecklund KM. Observation of eta' decays to pi+pi-pi0 and pi+pi-e+e-. Phys Rev Lett 2009; 102:061801. [PMID: 19257578 DOI: 10.1103/physrevlett.102.061801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Indexed: 05/27/2023]
Abstract
Using psi(2S)-->pi;{+}pi;{-}J/psi, J/psi-->gammaeta;{'} events acquired with the CLEO-c detector at the CESR e;{+}e;{-} collider, we make the first observations of the decays eta;{'}-->pi;{+}pi;{-}pi;{0} and eta;{'}-->pi;{+}pi;{-}e;{+}e;{-}, measuring absolute branching fractions (37_{-9};{+11}+/-4)x10;{-4} and (25_{-9};{+12}+/-5)x10;{-4}, respectively. For eta;{'}-->pi;{+}pi;{-}pi;{0}, this result probes the mechanism of isospin violation and the roles of pi;{0}/eta/eta;{'}-mixing and final state rescattering in strong decays. We also set upper limits on branching fractions for eta;{'} decays to pi;{+}pi;{-}micro;{+}micro;{-}, 2(pi;{+}pi;{-}), pi;{+}pi;{-}2pi;{0}, 2(pi;{+}pi;{-})pi;{0}, 3(pi;{+}pi;{-}), and invisible final states.
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Affiliation(s)
- P Naik
- University of Bristol, Bristol BS8 1TL, United Kingdom
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18
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Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Lopez A, Mendez H, Ramirez J, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J. J/psi and psi(2S) Radiative Transitions to eta_{c}. Phys Rev Lett 2009; 102:011801. [PMID: 19257180 DOI: 10.1103/physrevlett.102.011801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2008] [Indexed: 05/27/2023]
Abstract
Using 2.45x10;{7} psi(2S) decays collected with the CLEO-c detector at the Cornell Electron Storage Ring we present the most precise measurements of magnetic dipole transitions in the charmonium system. We measure B(psi(2S)-->gammaeta_{c})=(4.32+/-0.16+/-0.60)x10;{-3}, B(J/psi-->gammaeta_{c})/B(psi(2S)-->gammaeta_{c})=4.59+/-0.23+/-0.64, and B(J/psi-->gammaeta_{c})=(1.98+/-0.09+/-0.30)%. We observe a distortion in the eta_{c} line shape due to the photon-energy dependence of the magnetic dipole transition rate. We find that measurements of the eta_{c} mass are sensitive to the line shape, suggesting an explanation for the discrepancy between measurements of the eta_{c} mass in radiative transitions and other production mechanisms.
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Affiliation(s)
- R E Mitchell
- Indiana University, Bloomington, Indiana 47405, USA
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19
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Love W, Savinov V, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Horwitz N, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ecklund KM. Search for lepton flavor violation in upsilon decays. Phys Rev Lett 2008; 101:201601. [PMID: 19113327 DOI: 10.1103/physrevlett.101.201601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Indexed: 05/27/2023]
Abstract
In this Letter, we describe a search for lepton flavor violation (LFV) in the bottomonium system. We search for leptonic decays Upsilon(nS)-->mutau (n=1, 2, and 3) using the data collected with the CLEO III detector. We identify the tau lepton using its leptonic decay nu_{tau}nu[over ]_{e}e and utilize multidimensional likelihood fitting with probability density function shapes measured from independent data samples. We report our estimates of 95% C.L. upper limits on LFV branching fractions of Upsilon mesons. We interpret our results in terms of the exclusion plot for the energy scale of a hypothetical new interaction versus its effective LFV coupling in the framework of effective field theory.
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Affiliation(s)
- W Love
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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20
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He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Xavier JV, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Martin L, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J. Observation of Upsilon(2S)-->etaUpsilon(1S) and search for related transitions. Phys Rev Lett 2008; 101:192001. [PMID: 19113261 DOI: 10.1103/physrevlett.101.192001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2008] [Indexed: 05/27/2023]
Abstract
We report the first observation of Upsilon(2S)-->etaUpsilon(1S), with a branching fraction B=(2.1(-0.6)+0.7(stat)+/-0.3(syst)) x 10(-4) and a statistical significance 5.3sigma. Data were acquired with the CLEO III detector at the CESR e+e(-) symmetric collider. This is the first process observed involving a b-quark spin flip. For related transitions, 90% confidence limits in units of 10(-4) are B(Upsilon(2S)-->pi0Upsilon(1S)) < 1.8, B(Upsilon(3S)-->etaUpsilon(1S)) < 1.8, B(Upsilon(3S)-->pi0Upsilon(1S)) < 0.7, and B(Upsilon(3S)-->pi0Upsilon(2S)) < 5.1.
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Affiliation(s)
- Q He
- University of Rochester, Rochester, New York 14627, USA
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21
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Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Lopez A, Mendez H, Ramirez J, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P. Precision measurement of the mass of the hc(1P1) state of charmonium. Phys Rev Lett 2008; 101:182003. [PMID: 18999820 DOI: 10.1103/physrevlett.101.182003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Indexed: 05/27/2023]
Abstract
A precision measurement of the mass of the h_{c}(1P1) state of charmonium has been made using a sample of 24.5x10;{6} psi(2S) events produced in e;{+}e;{-} annihilation at the Cornell Electron Storage Ring (CESR). The reaction used was psi(2S)-->pi;{0}h_{c}, pi;{0}-->gammagamma, h_{c}-->gammaeta_{c}, and the reaction products were detected in the CLEO-c detector. Data have been analyzed both for the inclusive reaction and for the exclusive reactions in which eta_{c} decays are reconstructed in 15 hadronic decay channels. Consistent results are obtained in the two analyses. The averaged results of the present measurements are M(h_{c})=3525.28+/-0.19(stat.)+/-0.12(syst.) MeV, and B(psi(2S)-->pi;{0}h_{c})xB(h_{c}-->gammaeta_{c})=(4.19+/-0.32+/-0.45)x10;{-4}. Using the ;{3}P_{J} centroid mass, DeltaM_{hf}(1P) identical withM(chi_{cJ})-M(h_{c})=+0.02+/-0.19+/-0.13 MeV.
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Affiliation(s)
- S Dobbs
- Northwestern University, Evanston, Illinois 60208, USA
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Libby J, Martin L, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A. Measurement of the eta'-meson mass using J/psi-->gammaeta'. Phys Rev Lett 2008; 101:182002. [PMID: 18999819 DOI: 10.1103/physrevlett.101.182002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Indexed: 05/27/2023]
Abstract
We measure the mass of the eta;{'} meson using psi(2S)-->pi;{+}pi;{-}J/psi, J/psi-->gammaeta;{'} events acquired with the CLEO-c detector operating at the CESR e;{+}e;{-} collider. Using three decay modes, eta;{'}-->rho;{0}gamma, eta;{'}-->pi;{+}pi;{-}eta with eta-->gammagamma, and eta;{'}-->pi;{+}pi;{-}eta with eta-->pi;{+}pi;{-}pi;{0}, we find M_{eta;{'}}=957.793+/-0.054+/-0.036 MeV, in which the uncertainties are statistical and systematic, respectively. This result is consistent with but substantially more precise than the current world average.
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Affiliation(s)
- J Libby
- University of Oxford, Oxford OX1 3RH, United Kingdom
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23
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Bennett JV, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tan BJY, Tomaradze A, Libby J, Martin L, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Tatishvili G, Vogel H, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J. Observation of chicJ radiative decays to light vector mesons. Phys Rev Lett 2008; 101:151801. [PMID: 18999588 DOI: 10.1103/physrevlett.101.151801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2008] [Indexed: 05/27/2023]
Abstract
Using a total of 2.74 x 10(7) decays of the psi(2S) collected with the CLEO-c detector, we present a study of chi(cJ)-->gammaV, where V=rho(0), omega, phi. The transitions chi(c1)-->gammarho(0 and chi(c1)-->gammaomega are observed with B(chi(c1)-->gammarho(0))=(2.43+/-0.19+/-0.22) x 10(-4) and B(chi(c1)-->gammaomega)=(8.3+/-1.5+/-1.2) x 10(-5). In the chi(c1)-->gammarho(0) transition, the final state meson is dominantly longitudinally polarized. Upper limits on the branching fractions of other chi(cJ) states to light vector mesons are presented.
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Affiliation(s)
- J V Bennett
- Indiana University, Bloomington, Indiana 47405, USA
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24
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Love W, Savinov V, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Martin L, Powell A, Wilkinson G, Ecklund KM. Search for very light CP-odd Higgs Boson in radiative decays of Upsilon(1S). Phys Rev Lett 2008; 101:151802. [PMID: 18999589 DOI: 10.1103/physrevlett.101.151802] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2008] [Indexed: 05/27/2023]
Abstract
We search for a non-SM-like CP-odd Higgs boson (a(1)(0)) decaying to tau(+)tau(-) or mu(+)mu(-) in radiative decays of the Upsilon(1S). No significant signal is found, and upper limits on the product branching ratios are set. Our tau(+)tau(-) results are almost 2 orders of magnitude more stringent than previous upper limits. Our data provide no evidence for a Higgs state with a mass of 214 MeV decaying to mu(+)mu(-), previously proposed as an explanation for 3 Sigma(+)-->pmu(+)mu(-) events observed by the HyperCP experiment. Our results constrain NMSSM models.
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Affiliation(s)
- W Love
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
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25
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Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Ma JSY, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Mendez H, Ge JY, Miller DH, Shipsey IPJ, Xin B. Observation of J/psi-->3gamma. Phys Rev Lett 2008; 101:101801. [PMID: 18851203 DOI: 10.1103/physrevlett.101.101801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Indexed: 05/26/2023]
Abstract
We report the first observation of the decay J/psi-->3gamma. The signal has a statistical significance of 6sigma and corresponds to a branching fraction of B(J/psi-->3gamma)=(1.2+/-0.3+/-0.2)x10;{-5}, in which the errors are statistical and systematic, respectively. The measurement uses psi(2S)-->pi;{+}pi;{-}J/psi events acquired with the CLEO-c detector operating at the CESR e;{+}e;{-} collider.
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Affiliation(s)
- G S Adams
- Rensselaer Polytechnic Institute, Troy, New York 12180, USA
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26
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Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Severini H, Dytman SA, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Coan TE, Gao YS, Liu F, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Besson D, Pedlar TK. Study of the decays D0-->pi{-}e{+}nu{e}, D{0}-->K{-}e{+}nu{e}, D{+}-->pi{0}e{+}nu{e}, and D{+}-->K0e{+}nu{e}. Phys Rev Lett 2008; 100:251802. [PMID: 18643653 DOI: 10.1103/physrevlett.100.251802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Indexed: 05/26/2023]
Abstract
By using 1.8x10{6} DDpairs, we have measured B(D{0}-->pi{-}e{+}nu{e})=0.299(11)(9)%, B(D{+}-->pi{0}e{+}nu{e})=0.373(22)(13)%, B(D{0}-->K{-}e{+}nu{e})=3.56(3)(9)%, and B(D{+}-->K{0}e{+}nu{e})=8.53(13)(23)% and have studied the q;{2} dependence of the form factors. By combining our results with recent lattice calculations, we obtain |V{cd}|=0.217(9)(4)(23) and |V{cs}|=1.015(10)(11)(106).
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27
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Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Lopez A, Mendez H, Ramirez J, Ge JY, Miller DH, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Rademacker J, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME. Determination of the strong phase in D0-->K+pi- using quantum-correlated measurements. Phys Rev Lett 2008; 100:221801. [PMID: 18643413 DOI: 10.1103/physrevlett.100.221801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2008] [Indexed: 05/26/2023]
Abstract
We exploit the quantum coherence between pair-produced D0 and D[over]0 in psi(3770) decays to study charm mixing, which is characterized by the parameters x and y, and to make a first determination of the relative strong phase delta between D0-->K+pi- and D[over]0-->K+pi-. Using 281 pb(-1) of e+e- collision data collected with the CLEO-c detector at Ecm=3.77 GeV, as well as branching fraction input and time-integrated measurements of RM identical with (x2 + y2)/2 and RWS identical with Gamma(D0-->K+pi-)/Gamma(D[over]0-->K+pi-) from other experiments, we find cosdelta=1.03(-0.17)(+0.31)+/-0.06, where the uncertainties are statistical and systematic, respectively. By further including other mixing parameter measurements, we obtain an alternate measurement of cosdelta=1.10+/-0.35+/-0.07, as well as x sindelta=(4.4(-1.8)(+2.7)+/-2.9)x10(-3) and delta=(22(-12-11)(+11+9)) degrees .
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Affiliation(s)
- J L Rosner
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
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28
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Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Rademacker J, Asner DM, Edwards KW, Naik P, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Miyake H, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Lopez A, Mendez H, Ramirez J, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM. Absolute branching fractions of Cabibbo-suppressedD→KK¯decays. Int J Clin Exp Med 2008. [DOI: 10.1103/physrevd.77.091106] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Xin B, Puffenberger E, Nye L, Wiznitzer M, Wang H. A novel mutation in the GDAP1 gene is associated with autosomal recessive Charcot-Marie-Tooth disease in an Amish family. Clin Genet 2008; 74:274-8. [PMID: 18492089 DOI: 10.1111/j.1399-0004.2008.01018.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Charcot-Marie-Tooth disease (CMT) constitutes a large group of genetically heterogeneous disorders of the peripheral nervous system. Autosomal recessive forms of CMT are less common in the general population but account for the vast majority of CMT phenotypes in communities with a high prevalence of consanguinity. At least 10 genetic loci cause autosomal recessive forms of CMT. Mutations in the ganglioside-induced differentiation-associated protein 1 (GDAP1) gene are among the most frequent genetic causes of autosomal recessive forms of CMT. To date, 28 mutations in GDAP1 gene have been linked with the disease. Here, we report a novel GDAP1 mutation in an Old Order Amish family with CMT. To ascertain the Amish CMT locus, we performed a genome-wide single nucleotide polymorphism (SNP) analysis on one of three patients from a consanguineous pedigree. Assuming mutation homogeneity, the analysis sought large homozygous SNP blocks that also contained known CMT loci. The largest homozygous SNP block in the patient was localized to chromosome 8q13.1-21.3 and contained the GDAP1 gene. Sequence analysis revealed a novel homozygous mutation, c.692C>T, at codon 231 (p.P231L) in exon 5 of GDAP1 in all patients. Neither the unaffected individuals in the family nor the healthy control samples were homozygous for this mutation. Our findings suggested that this novel mutation in GDAP1 gene is associated with an autosomal recessive form of CMT in Ohio Old Order Amish community.
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Affiliation(s)
- B Xin
- DDC Clinic for Special Needs Children, Middlefield, OH 44062, USA.
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30
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Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Lopez A, Mendez H, Ramirez J, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Naik P, Rademacker J, Asner DM, Edwards KW, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Hunt JM, Kandaswamy J, Kreinick DL, Kuznetsov VE, Ledoux J, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T. First observation of the decay Ds+-->pn. Phys Rev Lett 2008; 100:181802. [PMID: 18518362 DOI: 10.1103/physrevlett.100.181802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2008] [Indexed: 05/26/2023]
Abstract
Using e+e--->Ds*-Ds+ data collected near the peak Ds production energy, Ecm=4170 MeV, with the CLEO-c detector, we present the first observation of the decay Ds+-->pn. We measure a branching fraction B(Ds+-->pn)=(1.30+/-0.36(-0.16)+0.12)x10(-3). This is the first observation of a charmed meson decaying into a baryon-antibaryon final state.
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Affiliation(s)
- S B Athar
- University of Florida, Gainesville, Florida 32611, USA
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Wong PC, Crain EJ, Xin B, Wexler RR, Lam PYS, Pinto DJ, Luettgen JM, Knabb RM. Apixaban, an oral, direct and highly selective factor Xa inhibitor: in vitro, antithrombotic and antihemostatic studies. J Thromb Haemost 2008; 6:820-9. [PMID: 18315548 DOI: 10.1111/j.1538-7836.2008.02939.x] [Citation(s) in RCA: 228] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Apixaban is an oral, direct and highly selective factor Xa (FXa) inhibitor in late-stage clinical development for the prevention and treatment of thromboembolic diseases. OBJECTIVE We evaluated the in vitro properties of apixaban and its in vivo activities in rabbit models of thrombosis and hemostasis. METHODS Studies were conducted in arteriovenous-shunt thrombosis (AVST), venous thrombosis (VT), electrically mediated carotid arterial thrombosis (ECAT) and cuticle bleeding time (BT) models. RESULTS In vitro, apixaban is potent and selective, with a K(i) of 0.08 nm for human FXa. It exhibited species difference in FXa inhibition [FXa K(i) (nm): 0.16, rabbit; 1.3, rat; 1.7, dog] and anticoagulation [EC(2x) (microm, concentration required to double the prothrombin time): 3.6, human; 2.3, rabbit; 7.9, rat; 6.7, dog]. Apixaban at 10 microm did not alter human and rabbit platelet aggregation to ADP, gamma-thrombin, and collagen. In vivo, the values for antithrombotic ED(50) (dose that reduced thrombus weight or increased blood flow by 50% of the control) in AVST, VT and ECAT and the values for BT ED(3x) (dose that increased BT by 3-fold) were 0.27 +/- 0.03, 0.11 +/- 0.03, 0.07 +/- 0.02 and > 3 mg kg(-1) h(-1) i.v. for apixaban, 0.05 +/- 0.01, 0.05 +/- 0.01, 0.27 +/- 0.08 and > 3 mg kg(-1) h(-1) i.v. for the indirect FXa inhibitor fondaparinux, and 0.53 +/- 0.04, 0.27 +/- 0.01, 0.08 +/- 0.01 and 0.70 +/- 0.07 mg kg(-1) day(-1) p.o. for the oral anticoagulant warfarin, respectively. CONCLUSIONS In summary, apixaban was effective in the prevention of experimental thrombosis at doses that preserve hemostasis in rabbits.
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Affiliation(s)
- P C Wong
- Thrombosis Research, Bristol-Myers Squibb Company, Pennington, NJ 08534, USA.
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Ecklund KM, Love W, Savinov V, Lopez A, Mendez H, Ramirez J, Ge JY, Miller DH, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Rademacker J, Asner DM, Edwards KW, Naik P, Reed J, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G. Measurement of the absolute branching fraction of Ds+ --> tau+ nutau decay. Phys Rev Lett 2008; 100:161801. [PMID: 18518183 DOI: 10.1103/physrevlett.100.161801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2007] [Indexed: 05/26/2023]
Abstract
Using a sample of tagged D(s)(+) decays collected near the D(s)(*+/-)D(s)(-/+) peak production energy in e(+)e(-) collisions with the CLEO-c detector, we study the leptonic decay D(s)(+)-->tau(+)nu(tau) via the decay channel tau(+)-->e(+)nu(e)nu(tau). We measure B(D(s)(+)-->tau(+)nu(tau))=(6.17+/-0.71+/-0.34)%, where the first error is statistical and the second systematic. Combining this result with our measurements of D(s)(+)-->mu(+)nu(mu) and D(s)(+)-->tau(+)nu(tau) (via tau(+)-->pi(+)nu(tau)), we determine f(D(s))=(274+/-10+/-5) MeV.
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Affiliation(s)
- K M Ecklund
- State University of New York at Buffalo, Buffalo, New York 14260, USA
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Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Mehrabyan S, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Libby J, Powell A, Wilkinson G, Ecklund KM, Love W, Savinov V, Lopez A, Mendez H, Ramirez J, Ge JY, Miller DH, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Mountain R, Nisar S, Randrianarivony K, Sultana N, Skwarnicki T, Stone S, Wang JC, Zhang LM, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Rademacker J, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL. Absolute measurement of hadronic branching fractions of the Ds+ meson. Phys Rev Lett 2008; 100:161804. [PMID: 18518186 DOI: 10.1103/physrevlett.100.161804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2007] [Indexed: 05/26/2023]
Abstract
The branching fractions of D(s)(+/-) meson decays serve to normalize many measurements of processes involving charm quarks. Using 298 pb(-1) of e(+)e(-) collisions recorded at a center of mass energy of 4.17 GeV, we determine absolute branching fractions for eight D(s)(+/-) decays with a double tag technique. In particular we determine the branching fraction B(D(s)(+)-->K(-)K(+}pi(+))=(5.50+/-0.23+/-0.16)%, where the uncertainties are statistical and systematic, respectively. We also provide partial branching fractions for kinematic subsets of the K(-)K(+)pi(+) decay mode.
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He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Coan TE, Gao YS, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J. Comparison of D--> KS0 pi and D--> KL0 pi decay rates. Phys Rev Lett 2008; 100:091801. [PMID: 18352696 DOI: 10.1103/physrevlett.100.091801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2007] [Indexed: 05/26/2023]
Abstract
We present measurements of D--> KS0 pi and D--> KL0 pi branching fractions using 281 pb(-1) of psi(3770) data at the CLEO-c experiment. We find that B(D0--> KS0 pi 0) is larger than B(D0--> KL0 pi 0), with an asymmetry of R(D0)=0.108+/-0.025+/-0.024. For B(D+--> KS0 pi+) and B(D+--> KL0 pi+), we observe no measurable difference; the asymmetry is R(D+)=0.022+/-0.016+/-0.018. The D0 asymmetry is consistent with the value based on the U-spin prediction A(D0--> K0 pi 0)/A(D0--> K0 pi 0)=-tan2 theta C, where theta C is the Cabibbo angle.
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Affiliation(s)
- Q He
- University of Rochester, Rochester, NY 14627, USA
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Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Henderson S, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Coan TE, Gao YS, Artuso M, Blusk S, Butt J, Li J, Menaa N, Moneti GC, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME. Measurement of upper limits forΥ→γ+Rdecays. Int J Clin Exp Med 2007. [DOI: 10.1103/physrevd.76.117102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Ge JY, Miller DH, Sanghi B, Shipsey IPJ, Xin B. Suppressed decays of D(s)(+) mesons to two pseudoscalar mesons. Phys Rev Lett 2007; 99:191805. [PMID: 18233066 DOI: 10.1103/physrevlett.99.191805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2007] [Indexed: 05/25/2023]
Abstract
Using data collected near the D{s}{*+}D{s}{-} peak production energy E_{cm}=4170 MeV by the CLEO-c detector, we study the decays of D{s}{+} mesons to two pseudoscalar mesons. We report on searches for the singly Cabibbo-suppressed D{s}{+} decay modes K{+}eta, K{+}eta', pi{+}K{S}{0}, K{+}pi{0}, and the isospin-forbidden decay mode D{s}{+}-->pi{+}pi{0}. We normalize with respect to the Cabibbo-favored D{s}{+} modes pi{+}eta, pi{+}eta', and K{+}K{S}{0}, and obtain ratios of branching fractions: B(D{s}{+}-->K{+}eta)/B(D{s}{+}-->pi{+}eta)=(8.9+/-1.5+/-0.4)%, B(D{s}{+}-->K{+}eta')/B(D{s}{+}-->pi{+}eta')=(4.2+/-1.3+/-0.3)%, B(D{s}{+}-->pi{+}K{S}{0})/B(D{s}{+}-->K{+}K{S}{0})=(8.2+/-0.9+/-0.2)%, B(D{s}{+}-->K{+}pi{0})/B(D{s}{+}-->K{+}K{S}{0})=(5.5+/-1.3+/-0.7)%, and B(D{s}{+}-->pi{+}pi{0})/B(D{s}{+}-->K{+}K{S}{0})<4.1% at 90% C.L., where the uncertainties are statistical and systematic, respectively.
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Affiliation(s)
- G S Adams
- Rensselaer Polytechnic Institute, Troy, New York 12180, USA
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Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F. Evidence for the decay D0-->K(-)pi(+)pi(-)e(+)nu(e). Phys Rev Lett 2007; 99:191801. [PMID: 18233062 DOI: 10.1103/physrevlett.99.191801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Indexed: 05/25/2023]
Abstract
Using a 281 pb{-1} data sample collected at the psi(3770) with the CLEO-c detector, we present the first absolute branching fraction measurement of the decay D0-->K(-)pi(+)pi(-)e(+)nu(e) at a statistical significance of about 4.0 standard deviations. We find 10 candidates consistent with the decay D0-->K(-)pi(+)pi(-)e(+)nu(e). The probability that a background fluctuation accounts for this signal is less than 4.1 x 10{-5}. We find B(D0-->K(-)pi(+)pi(-)e(+)nu(e)) = [2.8{-1.1}{+1.4}(stat)+/-0.3(syst)]x10{-4}. By restricting the invariant mass of the hadronic system to be consistent with K1(1270), we obtain the product of branching fractions B(D{0}-->K{1}{-}(1270)e{+}nu{e})xB(K1-(1270)-->K{-}pi{+}pi{-})=[2.5{-1.0}{+1.3}(stat)+/-0.2(syst)]x10{-4}. Using B(K1-(1270)-->K{-}pi{+}pi{-})=(33+/-3)%, we obtain B(D{0}-->K{1}{-}(1270)e{+}nu{e})=[7.6{-3.0}{+4.1}(stat)+/-0.6(syst)+/-0.7]x10{-4}. The last error accounts for the uncertainties in the measured K1-(1270)-->K{-}pi{+}pi{-} branching fractions.
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Affiliation(s)
- M Artuso
- Syracuse University, Syracuse, NY 13244, USA
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Lopez A, Mehrabyan S, Mendez H, Ramirez J, Ge JY, Miller DH, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V. Measurement of prominent eta-decay branching fractions. Phys Rev Lett 2007; 99:122001. [PMID: 17930497 DOI: 10.1103/physrevlett.99.122001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Indexed: 05/25/2023]
Abstract
The decay psi(2S) --> etaJ/psi is used to measure, for the first time, all prominent eta-meson branching fractions with the same experiment in the same dataset, thereby providing a consistent treatment of systematics across branching fractions. We present results for eta decays to gamma gamma, pi(+)pi(-)pi(0), 3pi(0), pi(+)pi(-)gamma and e(+)e(-)gamma, accounting for 99.9% of all eta decays. The precision of several of the branching fractions and their ratios is improved. Two channels, pi(+)pi(-)gamma and e(+)e(-)gamma, show results that differ at the level of three standard deviations from those previously determined.
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Affiliation(s)
- A Lopez
- University of Puerto Rico, Mayaguez, Puerto Rico 00681
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Miller DH, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Ge JY, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Artuso M, Blusk S, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Riley D, Ryd A, Sadoff AJ, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Eisenstein BI, Karliner I, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Lopez A, Mehrabyan S, Mendez H, Ramirez J. Measurement of the eta-meson mass using psi(2S) --> etaJ/psi. Phys Rev Lett 2007; 99:122002. [PMID: 17930498 DOI: 10.1103/physrevlett.99.122002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2007] [Indexed: 05/25/2023]
Abstract
We measure the mass of the eta meson using psi(2S) --> etaJ/psi events acquired with the CLEO-c detector operating at the CESR e(+)e(-) collider. Using the four decay modes eta --> gamma gamma, 3pi(0), pi(+)pi(-)pi(0), and pi(+)pi(-)gamma, we find M(eta) = 547.785 +/- 0.017 +/- 0.057 MeV, in which the first uncertainty is statistical and the second systematic. This result has an uncertainty comparable to the two most precise previous measurements and is consistent with that of NA48, but is inconsistent at the level of 6.5 sigma with the much smaller mass obtained by GEM.
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Affiliation(s)
- D H Miller
- Purdue University, West Lafayette, Indiana 47907, USA
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41
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Artuso M, Blusk S, Butt J, Khalil S, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Naik P, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Mohapatra D, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F. Measurement of the decay constant f(Ds+) using D(s+)-->l+ nu. Phys Rev Lett 2007; 99:071802. [PMID: 17930886 DOI: 10.1103/physrevlett.99.071802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Indexed: 05/25/2023]
Abstract
We measure the decay constant f(Ds+) using the D(s+)-->l+ nu channel, where the l+ designates either a mu+ or a tau+, when the tau+ -->pi+ nu. Using both measurements we find f(Ds+)=274+/-13+/-7 MeV. Combining with our previous determination of f(D+), we compute the ratio f(Ds+)/f(D+)=1.23+/-0.11+/-0.04. We compare with theoretical estimates.
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Affiliation(s)
- M Artuso
- Syracuse University, Syracuse, New York 13244, USA
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42
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Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Coan TE, Gao YS, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL. Study of exclusive charmless semileptonic B decays and |Vub|. Phys Rev Lett 2007; 99:041802. [PMID: 17678351 DOI: 10.1103/physrevlett.99.041802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2007] [Indexed: 05/16/2023]
Abstract
We study semileptonic B decay to the exclusive charmless states pi, rho/omega, eta, and eta;{'} using the 16 fb(-1) CLEO Upsilon(4S) data sample. We find B(B0-->pi-l+nu)=(1.37+/-0.15stat+/-0.11sys)x10(-4) and B(B0-->rho-l+nu)=(2.93+/-0.37stat+/-0.37sys)x10(-4) and find evidence for B+-->eta'l+nu, with B(B+-->eta'l+nu)=(2.66+/-0.80stat+/-0.56sys)x10(-4). From our B-->pilnu rate for q2>16 GeV2 and lattice QCD, we find |Vub|=(3.6+/0.4stat+/0.2syst-0.4thy+0.6)x10(-3) [corrected]
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Affiliation(s)
- N E Adam
- Cornell University, Ithaca, New York 14853, USA
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Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Selen M, White EJ, Wiss J, Mitchell RE, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Ecklund KM, Severini H, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Hu D, Moziak B, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Coan TE, Gao YS, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Cassel DG, Duboscq JE, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Athar SB, Patel R, Potlia V, Yelton J, Rubin P. Precision determination of the D0 mass. Phys Rev Lett 2007; 98:092002. [PMID: 17359150 DOI: 10.1103/physrevlett.98.092002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2007] [Indexed: 05/14/2023]
Abstract
A precision measurement of the D0 meson mass has been made using approximately 281 pb(-1) of e+e- annihilation data taken with the CLEO-c detector at the psi(3770) resonance. The exclusive decay D0-->K_{S}phi has been used to obtain M(D0)=1864.847+/-0.150(stat)+/-0.095(syst) MeV. This corresponds to M(D0D*0)=3871.81+/-0.36 MeV, and leads to a well-constrained determination of the binding energy of the proposed D0D*0 molecule X(3872), as Eb=0.6+/-0.6 MeV.
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Affiliation(s)
- C Cawlfield
- University of Illinois, Urbana-Champaign, Illinois 61801, USA
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44
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Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Zweber P, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Ernst J, Severini H, Dytman SA, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Yang F, Coan TE, Gao YS, Liu F, Artuso M, Blusk S, Butt J, Horwitz N, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Galik RS, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR. Observation of Upsilon(3S)-->tau+tau- and tests of lepton universality in Upsilon decays. Phys Rev Lett 2007; 98:052002. [PMID: 17358847 DOI: 10.1103/physrevlett.98.052002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2006] [Indexed: 05/14/2023]
Abstract
Using data collected with the CLEO III detector at the CESR e+e- collider, we report on a first observation of the decay Upsilon(3S)-->tau+tau-, and precisely measure the ratio of branching fractions of Upsilon(nS), n=1, 2, 3, to tau+tau- and mu+mu- final states, finding agreement with expectations from lepton universality. We derive absolute branching fractions for these decays, and also set a limit on the influence of a low mass CP-odd Higgs boson in the decay of the Upsilon(1S).
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Affiliation(s)
- D Besson
- University of Kansas, Lawrence, Kansas 66045, USA
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45
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Ablikim M, Bai JZ, Ban Y, Bian JG, Cai X, Chen HF, Chen HS, Chen HX, Chen JC, Chen J, Chen YB, Chi SP, Chu YP, Cui XZ, Dai YS, Deng ZY, Dong LY, Dong QF, Du SX, Du ZZ, Fang J, Fang SS, Fu CD, Gao CS, Gao YN, Gu SD, Gu YT, Guo YN, Guo YQ, He KL, He M, Heng YK, Hu HM, Hu T, Huang XP, Huang XT, Ji XB, Jiang XS, Jiao JB, Jin DP, Jin S, Jin Y, Lai YF, Li G, Li HB, Li HH, Li J, Li RY, Li SM, Li WD, Li WG, Li XL, Li XQ, Li YL, Liang YF, Liao HB, Liu CX, Liu F, Liu F, Liu HH, Liu HM, Liu J, Liu JB, Liu JP, Liu RG, Liu ZA, Lu F, Lu GR, Lu HJ, Lu JG, Luo CL, Ma FC, Ma HL, Ma LL, Ma QM, Ma XB, Mao ZP, Mo XH, Nie J, Peng HP, Qi ND, Qin H, Qiu JF, Ren ZY, Rong G, Shan LY, Shang L, Shen DL, Shen XY, Sheng HY, Shi F, Shi X, Sun HS, Sun JF, Sun SS, Sun YZ, Sun ZJ, Tan ZQ, Tang X, Tian YR, Tong GL, Wang DY, Wang L, Wang LS, Wang M, Wang P, Wang PL, Wang WF, Wang YF, Wang Z, Wang ZY, Wang Z, Wang Z, Wei CL, Wei DH, Wu N, Xia XM, Xie XX, Xin B, Xu GF, Xu Y, Yan ML, Yang F, Yang HX, Yang J, Yang YX, Ye MH, Ye YX, Yi ZY, Yu GW, Yuan CZ, Yuan JM, Yuan Y, Zang SL, Zeng Y, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HY, Zhang JW, Zhang JY, Zhang QJ, Zhang XM, Zhang XY, Zhang Y, Zhang ZP, Zhang ZQ, Zhao DX, Zhao JW, Zhao MG, Zhao PP, Zhao WR, Zheng HQ, Zheng JP, Zheng ZP, Zhou L, Zhou NF, Zhu KJ, Zhu QM, Zhu YC, Zhu YS, Zhu Y, Zhu ZA, Zhuang BA, Zhuang XA, Zou BS. Measurements of the continuum R(uds) and R values in e(+)e(-) annihilation in the energy region between 3.650 and 3.872 GeV. Phys Rev Lett 2006; 97:262001. [PMID: 17280420 DOI: 10.1103/physrevlett.97.262001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2006] [Indexed: 05/13/2023]
Abstract
We report measurements of the continuum R(uds) near the center-of-mass energy of 3.70 GeV, the R[uds(c)+psi(3770)](s) and the R(had)(s) values in e(+)e(-) annihilation at 68 energy points in the energy region between 3.650 and 3.872 GeV with the BES-II detector at the BEPC Collider. We obtain the R(uds) for the continuum light hadron (containing u, d, and s quarks) production near the DD threshold to be R(uds)=2.141+/-0.025+/-0.085.
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Affiliation(s)
- M Ablikim
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
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Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL. Absolute branching fraction measurements for D+ and D0 inclusive semileptonic decays. Phys Rev Lett 2006; 97:251801. [PMID: 17280340 DOI: 10.1103/physrevlett.97.251801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2006] [Indexed: 05/13/2023]
Abstract
We present measurements of the inclusive branching fractions for the decays D+-->Xe+ nu(e) and D0-->Xe+ nu(e), using 281 pb(-1) of data collected on the psi(3770) resonance with the CLEO-c detector. We find B(D0-->Xe+ nu(e)) = (6.46+/-0.17+/-0.13)% and B(D+-->Xe+ nu(e)) = (16.13+/-0.20+/-0.33)%. Using the known D meson lifetimes, we obtain the ratio Gamma(D+)sl/Gamma(D0)sl = 0.985+/-0.028+/-0.015, confirming isospin invariance at the level of 3%. The positron momentum spectra from D+ and D0 have consistent shapes.
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Affiliation(s)
- N E Adam
- Cornell University, Ithaca, New York 14853, USA
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Ablikim M, Bai JZ, Ban Y, Cai X, Chen HF, Chen HS, Chen HX, Chen JC, Chen J, Chen YB, Chi SP, Chu YP, Cui XZ, Dai YS, Deng ZY, Dong LY, Dong QF, Du SX, Du ZZ, Fang J, Fang SS, Fu CD, Gao CS, Gao YN, Gu SD, Gu YT, Guo YN, Guo YQ, Guo ZJ, Harris FA, He KL, He M, Heng YK, Hu HM, Hu T, Huang GS, Huang XP, Huang XT, Ji XB, Jiang XS, Jiao JB, Jin DP, Jin S, Jin Y, Lai YF, Li G, Li HB, Li HH, Li J, Li RY, Li SM, Li WD, Li WG, Li XL, Li XQ, Li YL, Liang YF, Liao HB, Liu CX, Liu F, Liu F, Liu HH, Liu HM, Liu J, Liu JB, Liu JP, Liu RG, Liu ZA, Lu F, Lu GR, Lu HJ, Lu JG, Luo CL, Ma FC, Ma HL, Ma LL, Ma QM, Ma XB, Mao ZP, Mo XH, Nie J, Olsen SL, Peng HP, Qi ND, Qin H, Qiu JF, Ren ZY, Rong G, Shan LY, Shang L, Shen DL, Shen XY, Sheng HY, Shi F, Shi X, Sun HS, Sun JF, Sun SS, Sun YZ, Sun ZJ, Tan ZQ, Tang X, Tian YR, Tong GL, Varner GS, Wang DY, Wang L, Wang LS, Wang M, Wang P, Wang PL, Wang WF, Wang YF, Wang Z, Wang ZY, Wang Z, Wang Z, Wei CL, Wei DH, Wu N, Xia XM, Xie XX, Xin B, Xu GF, Xu Y, Yan ML, Yang F, Yang HX, Yang J, Yang YX, Ye MH, Ye YX, Yi ZY, Yu GW, Yuan CZ, Yuan JM, Yuan Y, Zang SL, Zeng Y, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HY, Zhang JW, Zhang JY, Zhang QJ, Zhang XM, Zhang XY, Zhang YY, Zhang ZP, Zhang ZQ, Zhao DX, Zhao JW, Zhao MG, Zhao PP, Zhao WR, Zhao ZG, Zheng HQ, Zheng JP, Zheng ZP, Zhou L, Zhou NF, Zhu KJ, Zhu QM, Zhu YC, Zhu Y, Zhu YS, Zhu ZA, Zhuang BA, Zhuang XA, Zou BS. Observation of a broad 1-- resonant structure around 1.5 GeV/c2 in the K+K- mass spectrum in J/psi-->K+K-pi0. Phys Rev Lett 2006; 97:142002. [PMID: 17155241 DOI: 10.1103/physrevlett.97.142002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2006] [Indexed: 05/12/2023]
Abstract
A broad peak is observed at low K+K- invariant mass in J/psi-->K+K-pi(0) decays found in a sample of 5.8x10(7) J/psi events collected with the BESII detector. The statistical significance of the broad resonance is much larger than 5sigma. A partial wave analysis shows that the J;{PC} of this structure is 1--. Its pole position is determined to be [1576(-55)(+49)(stat)-91+98(syst)] MeV/c(2)-i/2[818(-23)(+22)(stat)-133+64(syst)] MeV/c(2). These parameters are not compatible with any known meson resonances.
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Affiliation(s)
- M Ablikim
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
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Ablikim M, Bai JZ, Ban Y, Bian JG, Cai X, Chen HF, Chen HS, Chen HX, Chen JC, Chen J, Chen YB, Chi SP, Chu YP, Cui XZ, Dai YS, Deng ZY, Dong LY, Dong QF, Du SX, Du ZZ, Fang J, Fang SS, Fu CD, Gao CS, Gao YN, Gu SD, Gu YT, Guo YN, Guo YQ, He KL, He M, Heng YK, Hu HM, Hu T, Huang XP, Huang XT, Ji XB, Jiang XS, Jiao JB, Jin DP, Jin S, Jin Y, Lai YF, Li G, Li HB, Li HH, Li J, Li RY, Li SM, Li WD, Li WG, Li XL, Li XQ, Li YL, Liang YF, Liao HB, Liu CX, Liu F, Liu F, Liu HH, Liu HM, Liu J, Liu JB, Liu JP, Liu RG, Liu ZA, Lu F, Lu GR, Lu HJ, Lu JG, Luo CL, Ma FC, Ma HL, Ma LL, Ma QM, Ma XB, Mao ZP, Mo XH, Nie J, Peng HP, Qi ND, Qin H, Qiu JF, Ren ZY, Rong G, Shan LY, Shang L, Shen DL, Shen XY, Sheng HY, Shi F, Shi X, Sun HS, Sun JF, Sun SS, Sun YZ, Sun ZJ, Tan ZQ, Tang X, Tian YR, Tong GL, Wang DY, Wang L, Wang LS, Wang M, Wang P, Wang PL, Wang WF, Wang YF, Wang Z, Wang ZY, Wang Z, Wang Z, Wei CL, Wei DH, Wu N, Xia XM, Xie XX, Xin B, Xu GF, Xu Y, Yan ML, Yang F, Yang HX, Yang J, Yang YX, Ye MH, Ye YX, Yi ZY, Yu GW, Yuan CZ, Yuan JM, Yuan Y, Zang SL, Zeng Y, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HY, Zhang JW, Zhang JY, Zhang QJ, Zhang XM, Zhang XY, Zhang Y, Zhang ZP, Zhang ZQ, Zhao DX, Zhao JW, Zhao MG, Zhao PP, Zhao WR, Zheng HQ, Zheng JP, Zheng ZP, Zhou L, Zhou NF, Zhu KJ, Zhu QM, Zhu YC, Zhu YS, Zhu Y, Zhu ZA, Zhuang BA, Zhuang XA, Zou BS. Measurements of the branching fractions for psi(3770)-->D(0)D[over ](0), D+D-, DD[over ], and the resonance parameters of psi(3770) and psi(2S). Phys Rev Lett 2006; 97:121801. [PMID: 17025950 DOI: 10.1103/physrevlett.97.121801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2006] [Indexed: 05/12/2023]
Abstract
We measure the branching fractions for psi(3770)-->D(0)D[over ](0), D+D-, DD[over ], and non-DD[over ] to be (46.7+/-4.7+/-2.3)%, (36.9+/-3.7+/-2.8)%, (83.6+/-7.3+/-4.2)%, and (16.4+/-7.3+/-4.2)%, respectively. The resonance parameters of psi(3770) and psi(2S) are measured to be M_(psi(3770))=3772.2+/-0.7+/-0.3 MeV, Gamma_(psi(3770))(tot)=26.9+/-2.4+/-0.3 MeV, and Gamma_(psi(3770))(ee)=251+/-26+/-11 eV; M_(psi(2S))=3685.5+/-0.0+/-0.3 MeV, Gamma_(psi(2S))(tot)=331+/-58+/-2 keV, and Gamma_(psi(2S))(ee)=2.330+/-0.036+/-0.110 keV. We also measure the light hadron R value to be R(uds)=2.262+/-0.054+/-0.109 in the energy region from 3.660 to 3.872 GeV.
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Affiliation(s)
- M Ablikim
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
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Ablikim M, Bai JZ, Ban Y, Bian JG, Cai X, Chang JF, Chen HF, Chen HS, Chen HX, Chen JC, Chen J, Chen J, Chen ML, Chen YB, Chi SP, Chu YP, Cui XZ, Dai HL, Dai YS, Deng ZY, Dong LY, Du SX, Du ZZ, Fang J, Fang SS, Fu CD, Fu HY, Gao CS, Gao YN, Gong MY, Gong WX, Gu SD, Guo YN, Guo YQ, Guo ZJ, Harris FA, He KL, He M, He X, Heng YK, Hu HM, Hu T, Huang GS, Huang L, Huang XP, Ji XB, Jia QY, Jiang CH, Jiang XS, Jin DP, Jin S, Jin Y, Lai YF, Li F, Li G, Li HB, Li HH, Li J, Li JC, Li QJ, Li RB, Li RY, Li SM, Li WG, Li XL, Li XQ, Li XS, Liang YF, Liao HB, Liu CX, Liu F, Liu F, Liu HM, Liu JB, Liu JP, Liu RG, Liu ZA, Liu ZX, Lu F, Lu GR, Lu JG, Luo CL, Luo XL, Ma FC, Ma JM, Ma LL, Ma QM, Ma XY, Mao ZP, Mo XH, Nie J, Nie ZD, Olsen SL, Peng HP, Qi ND, Qian CD, Qin H, Qiu JF, Ren ZY, Rong G, Shan LY, Shang L, Shen DL, Shen XY, Sheng HY, Shi F, Shi X, Sun HS, Sun SS, Sun YZ, Sun ZJ, Tang X, Tao N, Tian YR, Tong GL, Varner GS, Wang DY, Wang JX, Wang JZ, Wang K, Wang L, Wang LS, Wang M, Wang P, Wang PL, Wang SZ, Wang WF, Wang YF, Wang Z, Wang Z, Wang Z, Wang ZY, Wei CL, Wei DH, Wu N, Wu YM, Xia XM, Xie XX, Xin B, Xu GF, Xu H, Xu Y, Xue ST, Yan ML, Yang F, Yang HX, Yang J, Yang SD, Yang YX, Ye M, Ye MH, Ye YX, Yi LH, Yi ZY, Yu CS, Yu GW, Yuan CZ, Yuan JM, Yuan Y, Yue Q, Zang SL, Zeng Y, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HY, Zhang J, Zhang JY, Zhang JW, Zhang LS, Zhang QJ, Zhang SQ, Zhang XM, Zhang XY, Zhang YJ, Zhang YY, Zhang Y, Zhang ZP, Zhang ZQ, Zhao DX, Zhao JB, Zhao JW, Zhao MG, Zhao PP, Zhao WR, Zhao XJ, Zhao YB, Zhao ZG, Zheng HQ, Zheng JP, Zheng LS, Zheng ZP, Zhong XC, Zhou BQ, Zhou GM, Zhou L, Zhou NF, Zhu KJ, Zhu QM, Zhu YC, Zhu YS, Zhu Y, Zhu ZA, Zhuang BA, Zou BS. Observation of two new N* peaks in J/psi-->ppi-n and ppi+n decays. Phys Rev Lett 2006; 97:062001. [PMID: 17026161 DOI: 10.1103/physrevlett.97.062001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2004] [Indexed: 05/12/2023]
Abstract
The decay J/psi-->NNpi provides an effective isospin 1/2 filter for the piN system due to isospin conservation. Using 58x10(6) J/psi decays collected with the Beijing Electromagnetic Spectrometer at the Beijing Electron Positron Collider, more than 100 thousand J/psi-->ppi-n+c.c. events are obtained. Besides the two well-known N* peaks at around 1500 MeV/c2 and 1670 MeV/c2, there are two new, clear N* peaks in the ppi invariant mass spectrum around 1360 MeV/c2 and 2030 MeV/c2 with statistical significance of 11sigma and 13sigma, respectively. We identify these as the first direct observation of the N*(1440) peak and a long-sought missing N* peak above 2 GeV/c2 in the piN invariant mass spectrum.
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Affiliation(s)
- M Ablikim
- Institute of High Energy Physics, Beijing 100039, People's Republic of China
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Rubin P, Cawlfield C, Eisenstein BI, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, White EJ, Wiss J, Shepherd MR, Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, Zweber P, Ernst J, Severini H, Dytman SA, Love W, Savinov V, Aquines O, Li Z, Lopez A, Mehrabyan S, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, Shipsey IPJ, Xin B, Adams GS, Anderson M, Cummings JP, Danko I, Napolitano J, He Q, Insler J, Muramatsu H, Park CS, Thorndike EH, Coan TE, Gao YS, Liu F, Artuso M, Blusk S, Butt J, Li J, Menaa N, Mountain R, Nisar S, Randrianarivony K, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang JC, Zhang K, Csorna SE, Bonvicini G, Cinabro D, Dubrovin M, Lincoln A, Asner DM, Edwards KW, Briere RA, Brock I, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins ME, Rosner JL, Adam NE, Alexander JP, Berkelman K, Cassel DG, Duboscq JE, Ecklund KM, Ehrlich R, Fields L, Gibbons L, Gray R, Gray SW, Hartill DL, Heltsley BK, Hertz D, Jones CD, Kandaswamy J, Kreinick DL, Kuznetsov VE, Mahlke-Krüger H, Meyer TO, Onyisi PUE, Patterson JR, Peterson D, Pivarski J, Riley D, Ryd A, Sadoff AJ, Schwarthoff H, Shi X, Stroiney S, Sun WM, Wilksen T, Weinberger M, Athar SB, Patel R, Potlia V, Stoeck H, Yelton J. An investigation ofD+→τ+ν. Int J Clin Exp Med 2006. [DOI: 10.1103/physrevd.73.112005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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