Measurement of the forward-backward asymmetry of electron and muon pair-production in pp collisions at √s=7 TeV with the ATLAS detector

被引：0

作者：

Aad, G. ^{[118
,119
]}

Abbott, B. ^{[151
]}

Abdallah, J. ^{[215
]}

Khalek, S. Abdel ^{[155
,156
]}

Abdinov, O. ^{[15
]}

Aben, R. ^{[144
,145
]}

Abi, B. ^{[152
]}

Abolins, M. ^{[124
]}

Abouzedi, O. S. ^{[223
]}

Abramowicz, H. ^{[217
]}

Abreu, H. ^{[216
]}

Abreu, R. ^{[45
]}

Abulaiti, Y. ^{[208
,209
]}

Acharya, B. S. ^{[230
,231
,251
]}

Adamczyk, L. ^{[61
]}

Adams, D. L. ^{[39
]}

Adelman, J. ^{[248
]}

Adomeit, S. ^{[135
]}

Adye, T. ^{[180
]}

Agatonovic-Jovin, T. ^{[18
]}

Aguiar-Saavedra, J. A. ^{[167
,172
,173
]}

Agustoni, M. ^{[24
,25
]}

Ahlen, S. P. ^{[33
]}

Ahmadov, F. ^{[15
,93
]}

Aielli, G. ^{[185
,186
]}

Akerstedt, H. ^{[208
,209
]}

Akesson, T. P. A. ^{[114
]}

Akimoto, G. ^{[219
,220
]}

Akimov, A. V. ^{[131
]}

Aberghi, G. L. ^{[30
,31
]}

Albert, J. ^{[241
]}

Albrand, S. ^{[82
]}

Alconada Verzini, M. J. ^{[99
,100
]}

Aleksa, M. ^{[45
]}

Aleksandrov, I. N. ^{[93
]}

Alexa, C. ^{[40
]}

Alexander, G. ^{[217
]}

Alexandre, G. ^{[74
]}

Alexopoulos, T. ^{[14
]}

Alhroob, M. ^{[230
,232
]}

Alimonti, G. ^{[125
]}

Alio, L. ^{[118
,119
]}

Alison, J. ^{[46
]}

Allbrooke, B. M. M. ^{[26
]}

Allison, L. J. ^{[101
]}

Allport, P. P. ^{[104
]}

Almond, J. ^{[117
]}

Aloisio, A. ^{[140
,141
]}

Alonso, A. ^{[58
]}

Alonso, F. ^{[99
,100
]}

机构：

[1] Univ Adelaide, Dept Phys, Adelaide, SA, Australia

[2] SUNY Albany, Dept Phys, Albany, NY 12222 USA

[3] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[4] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey

[5] Gazi Univ, Dept Phys, Ankara, Turkey

[6] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey

[7] Turkish Atom Energy Commiss, Ankara, Turkey

[8] CNRS, IN2P3, LAPP, Annecy Le Vieux, France

[9] Univ Savoie, Annecy Le Vieux, France

[10] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[11] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[12] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

[13] Univ Athens, Dept Phys, Athens, Greece

[14] Natl Tech Univ Athens, Dept Phys, Zografos, Greece

[15] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan

[16] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[17] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain

[18] Univ Belgrade, Inst Phys, Belgrade, Serbia

[19] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia

[20] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[21] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[22] Univ Calif Berkeley, Berkeley, CA 94720 USA

[23] Humboldt Univ, Dept Phys, Berlin, Germany

[24] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

[25] Univ Bern, High Energy Phys Lab, Bern, Switzerland

[26] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[27] Bogazici Univ, Dept Phys, Istanbul, Turkey

[28] Dogus Univ, Dept Phys, Istanbul, Turkey

[29] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey

[30] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[31] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[32] Univ Bonn, Inst Phys, Bonn, Germany

[33] Boston Univ, Dept Phys, Boston, MA 02215 USA

[34] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA

[35] Univ Fed Rio de Janeiro, COPPE, EE, IF, BR-21945 Rio De Janeiro, Brazil

[36] Fed Univ Juiz de Fora UFJF, Elect Circuits Dept, Juiz De Fora, Brazil

[37] Fed Univ Sao Joao del Rei UFSJ, Sao Joao Del Rei, Brazil

[38] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil

[39] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[40] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[41] Natl Inst Res & Dev Isotop & Mol Technol, Dept Phys, Cluj Napoca, Romania

[42] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

[43] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[44] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada

[45] CERN, Geneva, Switzerland

[46] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[47] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile

[48] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[49] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[50] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2015年 / 09期

基金：

美国国家科学基金会; 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：

Hadron-Hadron Scattering; RADIATIVE-CORRECTIONS;

D O I：

10.1007/JHEP09(2015)049

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

This paper presents measurements from the ATLAS experiment of the forward-backward asymmetry in the reaction pp -> Z/gamma* -> l(+)l(-), with l being electrons or muons, and the extraction of the effective weak mixing angle. The results are based on the full set of data collected in 2011 in pp collisions at the LHC at root s = 7 TeV, corresponding to an integrated luminosity of 4.8 fb(-1). The measured asymmetry values are found to be in agreement with the corresponding Standard Model predictions. The combination of the muon and electron channels yields a value of the effective weak mixing angle of sin(2) theta(lept)(eff) = 0.2308 +/- 0.0005(stat.)+/- 0.0006(syst.)+/- 0.0009(PDF), where the first uncertainty corresponds to data statistics, the second to s ystematic effects and the third to knowledge of the parton density functions. This result agrees with the current world average from the Particle Data Group fit.

引用

页数：43

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