Dependence of the t(t)over-bar production cross section on the transverse momentum of the top quark

被引：32

作者：

Abazov, V. M. ^{[41
]}

Abbott, B. ^{[79
]}

Abolins, M. ^{[68
]}

Acharya, B. S. ^{[33
]}

Adams, M. ^{[54
]}

Adams, T. ^{[52
]}

Aguilo, E. ^{[6
,7
]}

Alexeev, G. D. ^{[41
]}

Alkhazov, G.

Alton, A. ^{[68
]}

Alverson, G. ^{[66
]}

Alves, G. A.

Ancu, L. S. ^{[40
]}

Aoki, M. ^{[53
]}

Arnoud, Y. ^{[15
]}

Arov, M. ^{[63
]}

Askew, A. ^{[52
]}

Asman, B. ^{[45
,46
]}

Atramentov, O.

Avila, C. ^{[9
]}

BackusMayes, J. ^{[86
]}

Badaud, F. ^{[14
]}

Bagby, L. ^{[53
]}

Baldin, B. ^{[62
]}

Bandurin, D. V. ^{[33
]}

Banerjee, S. ^{[66
]}

Barberis, E. ^{[16
]}

Barfuss, A. -F. ^{[61
]}

Baringer, P. ^{[61
]}

Barreto, J. ^{[2
]}

Bartlett, J. F. ^{[53
]}

Bassler, U. ^{[20
]}

Bauer, D. ^{[48
]}

Beale, S. ^{[6
,7
]}

Bean, A. ^{[61
]}

Begalli, M. ^{[3
]}

Begel, M. ^{[77
]}

Belanger-Champagne, C. ^{[45
,46
]}

Bellantoni, L. ^{[53
]}

Benitez, J. A. ^{[68
]}

Beri, S. B. ^{[31
]}

Bernardi, G. ^{[18
,19
]}

Bernhard, R. ^{[26
]}

Bertram, I. ^{[47
]}

Besancon, M. ^{[20
]}

Beuselinck, R. ^{[48
]}

Bezzubov, V. A. ^{[44
]}

Bhat, P. C. ^{[53
]}

Bhatnagar, V. ^{[31
]}

Blazey, G. ^{[55
]}

机构：

[1] Univ Buenos Aires, Buenos Aires, DF, Argentina

[2] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil

[3] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil

[4] Univ Fed ABC, Santo Andre, Brazil

[5] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil

[6] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

[7] York Univ, Toronto, ON M3J 2R7, Canada

[8] Univ Sci & Technol China, Hefei 230026, Peoples R China

[9] Univ Los Andes, Bogota, Colombia

[10] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic

[11] Czech Tech Univ, CR-16635 Prague, Czech Republic

[12] Acad Sci Czech Republ, Inst Phys, Ctr Particle Phys, Prague, Czech Republic

[13] Univ San Francisco Quito, Quito, Ecuador

[14] Univ Blaise Pascal, LPC, CNRS IN2P3, Clermont Ferrand, France

[15] Univ Grenoble 1, CNRS, LPSC, IN2P3,Inst Natl Polytech Grenoble, Grenoble, France

[16] Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France

[17] Univ Paris Sud, LAL, IN2P3 CNRS, Orsay, France

[18] Univ Paris 06, LPNHE, IN2P3 CNRS, Paris, France

[19] Univ Paris 07, Paris, France

[20] SPP, CEA, Irfu, Saclay, France

[21] Univ Strasbourg, IPHC, CNRS IN2P3, Strasbourg, France

[22] Univ Lyon 1, CNRS, IPNL, IN2P3, F-69622 Villeurbanne, France

[23] Univ Lyon, Lyon, France

[24] Rhein Westfal TH Aachen, Inst Phys 3 A, Aachen, Germany

[25] Univ Bonn, Inst Phys, D-5300 Bonn, Germany

[26] Univ Freiburg, Inst Phys, Freiburg, Germany

[27] Univ Gottingen, Inst Phys 2, Gottingen, Germany

[28] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany

[29] Univ Munich, Munich, Germany

[30] Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[31] Panjab Univ, Chandigarh 160014, India

[32] Univ Delhi, Delhi 110007, India

[33] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[34] Univ Coll Dublin, Dublin 2, Ireland

[35] Korea Univ, Korea Detector Lab, Seoul, South Korea

[36] Sungkyunkwan Univ, Suwon, South Korea

[37] CINVESTAV, Mexico City 14000, DF, Mexico

[38] FOM Inst NIKHEF, Amsterdam, Netherlands

[39] Univ Amsterdam NIKHEF, Amsterdam, Netherlands

[40] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands

[41] Joint Inst Nucl Res, Dubna, Russia

[42] Inst Theoret & Expt Phys, Moscow 117259, Russia

[43] Moscow MV Lomonosov State Univ, Moscow, Russia

[44] Inst High Energy Phys, Protvino, Russia

[45] Stockholm Univ, S-10691 Stockholm, Sweden

[46] Uppsala Univ, Uppsala, Sweden

[47] Univ Lancaster, Lancaster, England

[48] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England

[49] Univ Manchester, Manchester M13 9PL, Lancs, England

[50] Univ Arizona, Tucson, AZ 85721 USA

来源：

PHYSICS LETTERS B | 2010年 / 693卷 / 05期

基金：

瑞典研究理事会; 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;

关键词：

Top quark; Differential cross sections; Perturbative QCD;

D O I：

10.1016/j.physletb.2010.09.011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a measurement of the differential cross section for t (t) over bar events produced in p (p) over bar collisions at root s = 1.96 TeV as a function of the transverse momentum (p(T)) of the top quark. The selected events contain a high-p(T) lepton (l), a large imbalance in p(T). four or more jets with at least one candidate for a b jet, and correspond to 1 fb(-1) of integrated luminosity recorded with the D0 detector. Objects in the event are associated through a constrained kinematic fit to the t (t) over bar -> WbW (b) over bar -> lvbq (q) over bar' (b) over bar process. Results from next and next-to-next-to-leading-order perturbative QCD calculations agree with the measured differential cross section. Comparisons are also provided to predictions from Monte Carlo event generators using QCD calculations at different levels of precision. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：515 / 521

页数：7

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