Combination of CDF and D0 results on the W boson mass and width -: art. no. 092008

被引:43
作者
Abazov, VM [1 ]
Abbott, B
Abdesselam, A
Abolins, M
Abramov, V
Acharya, BS
Acosta, D
Adams, DL
Adams, M
Affolder, T
Ahmed, SN
Akimoto, H
Akopian, A
Albrow, MG
Alexeev, GD
Alton, A
Alves, GA
Amaral, P
Ambrose, D
Amendolia, SR
Amidei, D
Anikeev, K
Antos, J
Apollinari, G
Arnoud, Y
Arisawa, T
Artikov, A
Asakawa, T
Avila, C
Ashmanskas, W
Atac, M
Azfar, F
Azzi-Bacchetta, P
Babintsev, VV
Babukhadia, L
Bacchetta, N
Bachacou, H
Bacon, TC
Baden, A
Badgett, W
Baffioni, S
Bailey, MW
Bailey, S
Baldin, B
Balm, PW
Banerjee, S
de Barbaro, P
Barbaro-Galtieri, A
Barberis, E
Baringer, P
机构
[1] Joint Inst Nucl Res, Dubna, Russia
[2] Univ Buenos Aires, Buenos Aires, DF, Argentina
[3] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil
[4] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil
[5] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada
[6] Univ Toronto, Toronto, ON M5S 1A7, Canada
[7] Inst High Energy Phys, Beijing 100039, Peoples R China
[8] Acad Sinica, Inst Phys, Taipei 11529, Taiwan
[9] Univ Los Andes, Bogota, Colombia
[10] Acad Sci, Ctr Particle Phys, Inst Phys, Prague, Czech Republic
[11] Charles Univ Prague, Ctr Particle Phys, Prague, Czech Republic
[12] Univ San Francisco Quito, Quito, Ecuador
[13] Univ Grenoble 1, CNRS, IN2P3, Lab Phys Subatom & Cosmol, Grenoble, France
[14] Univ Mediterranee, CNRS, IN2P3, CPPM, Marseille, France
[15] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91405 Orsay, France
[16] Univ Paris 06, LPNHE, Paris, France
[17] Univ Paris 07, IN2P3, CNRS, Paris, France
[18] CEA, Serv Phys Particules, DAPNIA, Saclay, France
[19] Univ Freiburg, Inst Phys, Freiburg, Germany
[20] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany
[21] Panjab Univ, Chandigarh 160014, India
[22] Univ Delhi, Delhi 110007, India
[23] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India
[24] Natl Univ Ireland Univ Coll Dublin, Dublin 4, Ireland
[25] Univ Bologna, Ist Nazl Fis Nucl, I-40127 Bologna, Italy
[26] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[27] Univ Padua, Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
[28] Univ Pisa, Ist Nazl Fis Nucl, I-56100 Pisa, Italy
[29] Scuola Normale Super Pisa, I-56100 Pisa, Italy
[30] Univ Rome 1, Sez Roma, Ist Nazl Fis Nucl, I-00185 Rome, Italy
[31] Univ Trieste, Ist Nazl Fis Nucl, Udine, Italy
[32] Hiroshima Univ, Higashihiroshima 724, Japan
[33] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan
[34] Osaka City Univ, Osaka 588, Japan
[35] Waseda Univ, Tokyo 169, Japan
[36] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South Korea
[37] Seoul Natl Univ, Seoul 151742, South Korea
[38] Sungkyunkwan Univ, Suwon 440746, South Korea
[39] CINVESTAV, Mexico City 14000, DF, Mexico
[40] NIKHEF H, FOM Inst, NL-1009 DB Amsterdam, Netherlands
[41] Univ Amsterdam, NIKHEF H, Amsterdam, Netherlands
[42] Univ Nijmegen, NIKHEF H, Nijmegen, Netherlands
[43] Joint Inst Nucl Res, Dubna, Russia
[44] Inst Theoret & Expt Phys, Moscow 117259, Russia
[45] Moscow MV Lomonosov State Univ, Moscow, Russia
[46] Inst High Energy Phys, Protvino, Russia
[47] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain
[48] Univ Geneva, CH-1211 Geneva 4, Switzerland
[49] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland
[50] Univ Lancaster, Lancaster, England
基金
美国国家科学基金会; 新加坡国家研究基金会; 加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会;
关键词
D O I
10.1103/PhysRevD.70.092008
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The results based on 1992-95 data (Run 1) from the CDF and D0 experiments on the measurements of the W boson mass and width are presented, along with the combined results. We report a Tevatron collider average M-W=80.456+/-0.059 GeV. We also report the Tevatron collider average of the directly measured W boson width Gamma(W)=2.115+/-0.105 GeV. We describe a new joint analysis of the direct W mass and width measurements. Assuming the validity of the standard model, we combine the directly measured W boson width with the width extracted from the ratio of W and Z boson leptonic partial cross sections. This combined result for the Tevatron is Gamma(W)=2.135+/-0.050 GeV. Finally, we use the measurements of the direct total W width and the leptonic branching ratio to extract the leptonic partial width Gamma(W-->enu)=224+/-13 MeV.
引用
收藏
页码:092008 / 1
页数:17
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