Measurement of differential production cross-sections for a Z boson in association with b-jets in 7 TeV proton-proton collisions with the ATLAS detector

被引：44

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
]}

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

Abramowicz, H. ^{[217
]}

Abreu, H. ^{[216
]}

Abreu, R. ^{[45
]}

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

Acharya, B. S. ^{[230
,231
,252
]}

Adamczyk, L. ^{[61
]}

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

Adelman, J. ^{[249
]}

Adomeit, S. ^{[135
]}

Adye, T. ^{[180
]}

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

Aguilar-Saavedra, J. A. ^{[114
,167
,172
,173
]}

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

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

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

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

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

Akesson, A. ^{[114
]}

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

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

Alberghi, 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] IN2P3, CNRS, 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, Rio De Janeiro, Brazil

[36] Univ Fed Juiz de Fora, Juiz de Fora, Brazil

[37] Univ Fed Sao Joao del Rei, 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, 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 | 2014年 / 10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：

Electroweak interaction; Hadron-Hadron Scattering; QCD; Heavy quark production; PARTON DISTRIBUTIONS;

D O I：

10.1007/JHEP10(2014)141

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：

Measurements of differential production cross-sections of a Z boson in association with b-jets in pp collisions at root s = 7 TeV are reported. The data analysed correspond to an integrated luminosity of 4.6 fb(-1) recorded with the ATLAS detector at the Large Hadron Collider. Particle-level cross-sections are determined for events with a Z boson decaying into an electron or muon pair, and containing b-jets. For events with at least one b-jet, the cross-section is presented as a function of the Z boson transverse momentum and rapidity, together with the inclusive b-jet cross-section as a function of b-jet transverse momentum, rapidity and angular separations between the b-jet and the Z boson. For events with at least two b-jets, the cross-section is determined as a function of the invariant mass and angular separation of the two highest transverse momentum b-jets, and as a function of the Z boson transverse momentum and rapidity. Results are compared to leading-order and next-to-leading-order perturbative QCD calculations.

引用

页码：1 / 49

页数：49

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