Measurement of the differential γ plus c-jet cross section and the ratio of differential γ plus c and γ plus b cross sections in p(p)over-bar collisions at √s=1.96 TeV

被引：31

作者：

Abazov, V. M. ^{[34
]}

Abbott, B. ^{[72
]}

Acharya, B. S. ^{[28
]}

Adams, M. ^{[50
]}

Adams, T. ^{[48
]}

Alexeev, G. D. ^{[34
]}

Alkhazov, G. ^{[38
]}

Alton, A. ^{[61
]}

Askew, A. ^{[48
]}

Atkins, S. ^{[59
]}

Augsten, K. ^{[7
]}

Avila, C. ^{[5
]}

Badaud, E. ^{[10
]}

Bagby, L. ^{[49
]}

Baldin, B. ^{[49
]}

Bandurin, D. V. ^{[48
]}

Banerjee, S. ^{[28
]}

Barberis, E. ^{[60
]}

Baringer, R. ^{[57
]}

Bartlett, J. F. ^{[49
]}

Bartosik, N. ^{[42
]}

Bassler, U. ^{[16
]}

Bazterra, V. ^{[50
]}

Bean, A. ^{[57
]}

Begalli, M. ^{[2
]}

Bellantoni, L. ^{[49
]}

Beri, S. B. ^{[26
]}

Bernardi, G. ^{[14
,15
]}

Bernhard, R. ^{[21
]}

Bertram, I. ^{[43
]}

Besancon, M. ^{[16
]}

Beuselinck, R. ^{[44
]}

Bhat, P. C. ^{[49
]}

Bhatia, S. ^{[63
]}

Bhatnagar, V. ^{[26
]}

Blazey, G. ^{[51
]}

Blessing, S. ^{[48
]}

Bloom, K. ^{[64
]}

Boehnlein, A. ^{[49
]}

Boline, D. ^{[69
]}

Boos, E. E. ^{[36
]}

Borissov, G. ^{[43
]}

Brandt, A. ^{[75
]}

Brandt, O. ^{[22
]}

Brock, R. ^{[62
]}

Bross, A. ^{[49
]}

Brown, D. ^{[14
,15
]}

Brown, J. ^{[14
,15
]}

Bu, X. B. ^{[49
]}

Buehler, M. ^{[49
]}

机构：

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

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

[3] Univ Fed ABC, Santo Andre, Brazil

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

[5] Univ Los Andes, Bogota, Colombia

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

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

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

[9] Univ San Francisco Quito, Quito, Ecuador

[10] Univ Blaise Pascal, CNRS, IN2P3, LPSC, Clermont, France

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

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

[13] Univ Paris 11, CNRS, LAL, IN2P3, F-91405 Orsay, France

[14] Univ Paris 06, LPNHE, Paris, France

[15] Univ Paris 07, CNRS, IN2P3, Paris, France

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

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

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

[19] Univ Lyon, Lyon, France

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

[21] Univ Freiburg, Inst Phys, D-79106 Freiburg, Germany

[22] Univ Gottingen, Inst Phys 2, D-37073 Gottingen, Germany

[23] Johannes Gutenberg Univ Mainz, Inst Phys, D-55122 Mainz, Germany

[24] Univ Munich, Munich, Germany

[25] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[26] Panjab Univ, Chandigarh 160014, India

[27] Univ Delhi, Delhi 110007, India

[28] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India

[29] Univ Coll Dublin, Dublin 2, Ireland

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

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

[32] Nikhef, Amsterdam, Netherlands

[33] Radboud Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands

[34] Joint Inst Nucl Res, Dubna, Russia

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

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

[37] Inst High Energy Phys, Protvino, Russia

[38] Petersburg Nucl Phys Inst, St Petersburg, Russia

[39] ICREA, Barcelona, Spain

[40] IFAE, Barcelona, Spain

[41] Uppsala Univ, Uppsala, Sweden

[42] Taras Shevchenko Natl Univ Kyiv, Kiev, Ukraine

[43] Univ Lancaster, Lancaster LA1 4YB, England

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

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

[46] Univ Arizona, Tucson, AZ 85721 USA

[47] Univ Calif Riverside, Riverside, CA 92521 USA

[48] Florida State Univ, Tallahassee, FL 32306 USA

[49] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[50] Univ Illinois, Chicago, IL 60607 USA

来源：

PHYSICS LETTERS B | 2013年 / 719卷 / 4-5期

基金：

美国国家科学基金会; 瑞典研究理事会; 巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/j.physletb.2013.01.033

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present measurements of the differential cross section d sigma/dp(T)(gamma) for the associated production of a c-quark jet and an isolated photon with rapidity vertical bar y(gamma)vertical bar < 1.0 and transverse momentum 30 < p(T)(gamma) < 300 GeV. The c-quark jets are required to have vertical bar y(jet)vertical bar < 1.5 and p(T)(jet) > 15 GeV. The ratio of differential cross sections for gamma + c to gamma + b production as a function of p(T)(gamma) is also presented. The results are based on data corresponding to an integrated luminosity of 8.7 fb(-1) recorded with the D0 detector at the Fermilab Tevatron p (p) over bar Collider at root s = 1.96 TeV. The obtained results are compared to next-to-leading order perturbative QCD calculations using various parton distribution functions, to predictions based on the k(T)-factorization approach, and to predictions from the SHERPA and PYTHIA Monte Carlo event generators. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：354 / 361

页数：8

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