Measurements of normalized differential cross sections for t(t)over-bar production in pp collisions at √(s)=7 TeV using the ATLAS detector

被引：81

作者：

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

Abajyan, T. ^{[32
]}

Abbott, B. ^{[151
]}

Abdallah, J.

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. ^{[195
]}

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

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

Adamczyk, L. ^{[62
]}

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

Adelman, J. ^{[248
]}

Adomeit, S. ^{[135
]}

Adye, T. ^{[180
]}

Agatonovic-Jovin, T. ^{[19
]}

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

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

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

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

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

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

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

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

Albert, J. ^{[241
]}

Albrand, S. ^{[82
]}

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

Aleksa, M. ^{[46
]}

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. ^{[47
]}

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

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

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

Allwood-Spiers, S. E. ^{[80
]}

Almond, J. ^{[117
]}

Aloisio, A. ^{[5
,58
,140
,141
]}

Alon, R. ^{[244
]}

Alonso, A. ^{[59
]}

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, Vinci 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] INFN, Sez Bologna, Frascati, 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, 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 Politehn Bucuresti, Bucharest, Romania

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

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

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

[46] CERN, Geneva, Switzerland

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

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

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

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

来源：

PHYSICAL REVIEW D | 2014年 / 90卷 / 07期

基金：

巴西圣保罗研究基金会; 加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

PARTON DISTRIBUTIONS;

D O I：

10.1103/PhysRevD.90.072004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Measurements of normalized differential cross sections for top-quark pair production are presented as a function of the top-quark transverse momentum, and of the mass, transverse momentum, and rapidity of the t (t) over bar system, in proton proton collisions at a center-of-mass energy of root s = 7 TeV. The data set corresponds to an integrated luminosity of 4.6 fb(-1), recorded in 2011 with the ATLAS detector at the CERN Large Hadron Collider. Events are selected in the lepton jets channel, requiring exactly one lepton and at least four jets with at least one of the jets tagged as originating from a b-quark. The measured spectra are corrected for detector efficiency and resolution effects and are compared to several Monte Carlo simulations and theory calculations. The results are in fair agreement with the predictions in a wide kinematic range. Nevertheless, data distributions are softer than predicted for higher values of the mass of the t (t) over bar system and of the top-quark transverse momentum. The measurements can also discriminate among different sets of parton distribution functions.

引用

页数：42

共 73 条

[1] Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton-proton collision data [J].

Aad, G. ;

Abajyan, T. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, O. S. ;

Abramowicz, H. ;

Abreu, H. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Adomeit, S. ;

Adye, T. ;

Agatonovic-Jovin, T. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Ahlen, S. P. ;

Ahmad, A. ;

Ahmadov, F. ;

Aielli, G. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Albert, J. ;

Albrand, S. ;

Alconada Verzini, M. J. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Alimonti, G. ;

Alio, L. ;

Alison, J. ;

Allbrooke, B. M. M. ;

Allison, L. J. ;

Allport, P. P. ;

Allwood-Spiers, S. E. ;

Almond, J. ;

Aloisio, A. ;

Alon, R. .

EUROPEAN PHYSICAL JOURNAL C, 2014, 74 (07)

[2]

Aad G, 2013, EUR PHYS J C, V73, DOI 10.1140/epjc/s10052-013-2518-3

[3]

Aad G, 2013, EUR PHYS J C, V73, DOI 10.1140/epjc/s10052-012-2261-1

[4]

Aad G, 2013, EUR PHYS J C, V73, DOI 10.1140/epjc/s10052-013-2306-0

[5]

Aad G, 2013, EUR PHYS J C, V73, DOI 10.1140/epjc/s10052-013-2304-2

[6] Measurement of the top quark pair cross section with ATLAS in pp collisions at √s=7 TeV using final states with an electron or a muon and a hadronically decaying τ lepton [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdelalim, A. A. ;

Abdinov, O. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, O. S. ;

Abramowicz, H. ;

Abreu, H. ;

Acerbi, E. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Akiyama, A. ;

Alam, M. S. ;

Alam, M. A. ;

Albert, J. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alessandria, F. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Allbrooke, B. M. M. ;

Allport, P. P. .

PHYSICS LETTERS B, 2012, 717 (1-3) :89-108

[7]

Aad G, 2012, EUR PHYS J C, V72, DOI 10.1140/epjc/s10052-012-2043-9

[8]

Aad G, 2012, J HIGH ENERGY PHYS, DOI 10.1007/JHEP05(2012)059

[9] Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Abdelalim, A. A. ;

Abdesselam, A. ;

Abdinov, O. ;

Abi, B. ;

Abolins, M. ;

Abramowicz, H. ;

Abreu, H. ;

Acerbi, E. ;

Acharya, B. S. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Aderholz, M. ;

Adomeit, S. ;

Adragna, R. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Akiyama, A. ;

Alam, M. S. ;

Alam, M. A. ;

Albert, J. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alessandria, F. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Aliyev, M. ;

Allport, P. P. ;

Allwood-Spiers, S. E. .

PHYSICS LETTERS B, 2012, 711 (3-4) :244-263

[10] Electron performance measurements with the ATLAS detector using the 2010 LHC proton-proton collision data [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Abdelalim, A. A. ;

Abdesselam, A. ;

Abdinov, O. ;

Abi, B. ;

Abolins, M. ;

Abramowicz, H. ;

Abreu, H. ;

Acerbi, E. ;

Acharya, B. S. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Aderholz, M. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. ;

Akimoto, G. ;

Akimov, A. V. ;

Akiyama, A. ;

Alam, M. S. ;

Alam, M. A. ;

Albert, J. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alessandria, F. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Aliyev, M. ;

Allport, P. P. ;

Allwood-Spiers, S. E. .

EUROPEAN PHYSICAL JOURNAL C, 2012, 72 (03) :1-46

← 1 2 3 4 5 6 7 8 →