High-precision measurement of the W boson mass with the CDF II detector

被引:393
|
作者
Aaltonen, T. [1 ,2 ]
Amerio, S. [3 ,4 ]
Amidei, D. [5 ]
Anastassov, A. [6 ]
Annovi, A. [7 ]
Antos, J. [8 ,9 ]
Apollinari, G. [6 ]
Appel, J. A. [6 ]
Arisawa, T. [10 ]
Artikov, A. [11 ]
Asaadi, J. [12 ]
Ashmanskas, W. [6 ]
Auerbach, B. [13 ]
Aurisano, A. [12 ]
Azfar, F. [14 ]
Badgett, W. [6 ]
Bae, T. [15 ,16 ,17 ,18 ,19 ,20 ,21 ]
Barbaro-Galtieri, A. [22 ]
Barnes, V. E. [23 ]
Barnett, B. A. [24 ]
Barria, P. [25 ,26 ]
Bauce, M. [3 ,4 ]
Bedeschi, F. [25 ]
Behari, S. [6 ]
Bellettini, G. [25 ,27 ]
Bellinger, J. [28 ]
Benjamin, D. [29 ]
Beretvas, A. [6 ]
Bhatti, A. [30 ]
Bland, K. R. [31 ]
Blumenfeld, B. [24 ]
Bocci, A. [29 ]
Bodek, A. [32 ]
Bortoletto, D. [23 ]
Boudreau, J. [33 ]
Boveia, A. [34 ]
Brigliadori, L. [35 ,36 ]
Bromberg, C. [37 ]
Brucken, E. [1 ,2 ]
Budagov, J. [11 ]
Budd, H. S. [32 ]
Burkett, K. [6 ]
Busetto, G. [3 ,4 ]
Bussey, P. [38 ]
Butti, P. [25 ,27 ]
Buzatu, A. [38 ]
Calamba, A. [39 ]
Camarda, S. [40 ]
Campanelli, M. [41 ]
Carls, B. [42 ]
机构
[1] Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland
[2] Helsinki Inst Phys, FIN-00014 Helsinki, Finland
[3] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
[4] Univ Padua, I-35131 Padua, Italy
[5] Univ Michigan, Ann Arbor, MI 48109 USA
[6] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
[7] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[8] Comenius Univ, Bratislava 84248, Slovakia
[9] Inst Expt Phys, Kosice 04001, Slovakia
[10] Waseda Univ, Tokyo 169, Japan
[11] Joint Inst Nucl Res, RU-141980 Dubna, Russia
[12] Texas A&M Univ, Mitchell Inst Fundamental Phys & Astron, College Stn, TX 77843 USA
[13] Argonne Natl Lab, Argonne, IL 60439 USA
[14] Univ Oxford, Oxford OX1 3RH, England
[15] Kyungpook Natl Univ, Ctr High Energy Phys, Daegu 702701, South Korea
[16] Seoul Natl Univ, Seoul 151742, South Korea
[17] Sungkyunkwan Univ, Suwon 440746, South Korea
[18] Korea Inst Sci & Technol Informat, Daejeon 305806, South Korea
[19] ChonnamNatl Univ, Gwangju 500757, South Korea
[20] Chonbuk Natl Univ, Jeonju 561756, South Korea
[21] Ewha Womans Univ, Seoul 120750, South Korea
[22] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[23] Purdue Univ, W Lafayette, IN 47907 USA
[24] Johns Hopkins Univ, Baltimore, MD 21218 USA
[25] Ist Nazl Fis Nucl Pisa, I-56127 Pisa, Italy
[26] Univ Siena, I-53100 Siena, Italy
[27] Univ Pisa, I-56126 Pisa, Italy
[28] Univ Wisconsin, Madison, WI 53706 USA
[29] Duke Univ, Durham, NC 27708 USA
[30] Rockefeller Univ, New York, NY 10065 USA
[31] Baylor Univ, Waco, TX 76798 USA
[32] Univ Rochester, Rochester, NY 14627 USA
[33] Univ Pittsburgh, Pittsburgh, PA 15260 USA
[34] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[35] Ist Nazl Fis Nucl Bologna, I-40127 Bologna, Italy
[36] Univ Bologna, I-40127 Bologna, Italy
[37] Michigan State Univ, E Lansing, MI 48824 USA
[38] Glasgow Univ, Glasgow G12 8QQ, Lanark, Scotland
[39] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[40] Univ Autonoma Barcelona, Inst Fis Altes Energies, ICREA, E-08193 Bellaterra, Barcelona, Spain
[41] UCL, London WC1E 6BT, England
[42] Univ Illinois, Urbana, IL 61801 USA
[43] Univ Florida, Gainesville, FL 32611 USA
[44] Univ Cantabria, Inst Fis Cantabria, CSIC, Santander 39005, Spain
[45] Ist Nazl Fis Nucl Trieste, I-34127 Trieste, Italy
[46] Harvard Univ, Cambridge, MA 02138 USA
[47] Grp Collegato Udine, I-33100 Udine, Italy
[48] Univ Udine, I-33100 Udine, Italy
[49] Acad Sinica, Inst Phys, Taipei 11529, Taiwan
[50] Univ Calif Davis, Davis, CA 95616 USA
基金
加拿大自然科学与工程研究理事会; 芬兰科学院; 瑞士国家科学基金会; 美国国家科学基金会; 新加坡国家研究基金会; 澳大利亚研究理事会; 英国科学技术设施理事会; 俄罗斯基础研究基金会;
关键词
TRANSVERSE-MOMENTUM RESUMMATION; PAIR PRODUCTION; LEPTON PAIRS; ELECTROMAGNETIC CALORIMETER; P(P)OVER-BAR COLLISIONS; HIGH-ENERGIES; DARK-MATTER; WIDTH; BREMSSTRAHLUNG; ELECTRONS;
D O I
10.1126/science.abk1781
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The mass of the W boson, a mediator of the weak force between elementary particles, is tightly constrained by the symmetries of the standard model of particle physics. The Higgs boson was the last missing component of the model. After observation of the Higgs boson, a measurement of the W boson mass provides a stringent test of the model. We measure the W boson mass, M-W, using data corresponding to 8.8 inverse femtobarns of integrated luminosity collected in proton-antiproton collisions at a 1.96 tera-electron volt center-of-mass energy with the CDF II detector at the Fermilab Tevatron collider. A sample of approximately 4 million W boson candidates is used to obtain M-W = 80,433.5 +/- 6.4(stat) +/- 6.9(syst) = 80,433.5 +/- 9.4MeV/c(2), the precision of which exceeds that of all previous measurements combined (stat, statistical uncertainty; syst, systematic uncertainty; MeV, mega-electron volts; c, speed of light in a vacuum). This measurement is in significant tension with the standard model expectation.
引用
收藏
页码:170 / +
页数:77
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