Production of Muons from Heavy Flavor Decays at Forward Rapidity in pp and Pb-Pb Collisions at √sNN=2.76 TeV

被引:103
作者
Abelev, B. [1 ]
Adam, J. [2 ]
Adamova, D. [3 ]
Adare, A. M. [4 ]
Aggarwal, M. M. [5 ]
Rinella, G. Aglieri [6 ]
Agocs, A. G. [7 ]
Agostinelli, A. [8 ,9 ,64 ,68 ,69 ]
Aguilar Salazar, S. [10 ]
Ahammed, Z. [11 ]
Masoodi, A. Ahmad [12 ]
Ahmad, N. [12 ]
Ahn, S. A. [13 ]
Ahn, S. U. [14 ,15 ]
Akindinov, A. [16 ,64 ]
Aleksandrov, D. [17 ]
Alessandro, B. [18 ]
Alfaro Molina, R. [10 ]
Alici, A. [9 ,19 ,20 ]
Alkin, A. [21 ]
Almaraz Avina, E. [10 ]
Alme, J. [22 ]
Alt, T. [23 ]
Altini, V. [24 ,25 ]
Altinpinar, S. [26 ]
Altsybeev, I. [27 ]
Andrei, C. [28 ]
Andronic, A. [29 ,30 ]
Anguelov, V. [31 ]
Anielski, J. [32 ]
Anson, C. [33 ]
Anticic, T. [34 ]
Antinori, F. [35 ]
Antonioli, P. [9 ]
Aphecetche, L. [36 ]
Appelshaeuser, H. [37 ]
Arbor, N. [38 ]
Arcelli, S. [8 ,9 ]
Arend, A. [37 ]
Armesto, N. [39 ,40 ]
Arnaldi, R. [18 ]
Aronsson, T. [4 ]
Arsene, I. C. [29 ,30 ]
Arslandok, M. [37 ]
Asryan, A. [27 ]
Augustinus, A. [6 ]
Averbeck, R. [29 ,30 ]
Awes, T. C. [41 ]
Aysto, J. [42 ,43 ]
Azmi, M. D. [12 ]
机构
[1] Lawrence Livermore Natl Lab, Livermore, CA USA
[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague, Czech Republic
[3] Acad Sci Czech Republ, Inst Nucl Phys, Prague, Czech Republic
[4] Yale Univ, New Haven, CT USA
[5] Panjab Univ, Dept Phys, Chandigarh 160014, India
[6] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland
[7] Hungarian Acad Sci, KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary
[8] Univ Bologna, Dipartmento Fis, Bologna, Italy
[9] Sezione Ist Nazl Fis Nucl, Bologna, Italy
[10] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
[11] Ctr Variable Energy Cyclotron, Kolkata, India
[12] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India
[13] Korea Inst Sci & Technol Informat, Taejon, South Korea
[14] Univ Clermont Ferrand 2, LPC, CNRS, IN2P3, Clermont Ferrand, France
[15] Gangneung Wonju Natl Univ, Kangnung, South Korea
[16] Inst Theoret & Expt Phys, Moscow 117259, Russia
[17] Kurchatov Inst, Russian Res Ctr, Moscow, Russia
[18] Sezione Ist Nazl Fis Nucl, Turin, Italy
[19] Ctr Fermi Ctr & Ric, Rome, Italy
[20] Museo Stor Fis Enrico Fermi, Rome, Italy
[21] Bogolyubov Inst Theoret Phys, Kiev, Ukraine
[22] Bergen Univ Coll, Fac Engn, Bergen, Norway
[23] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany
[24] Dipartimento Interateneo Fis M Merlin, Bari, Italy
[25] Sezione Ist Nazl Fis Nucl, Bari, Italy
[26] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[27] St Petersburg State Univ, V Fock Inst Phys, St Petersburg, Russia
[28] Natl Inst Phys & Nucl Engn, Bucharest, Romania
[29] GSI Helmholtzzentrum Schwerionenforsch, Div Res, Darmstadt, Germany
[30] GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, Darmstadt, Germany
[31] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany
[32] Univ Munster, Inst Kernphys, D-4400 Munster, Germany
[33] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
[34] Rudjer Boskovic Inst, Zagreb, Croatia
[35] Sezione Ist Nazl Fis Nucl, Padua, Italy
[36] Univ Nantes, CNRS, IN2P3, Ecole Mines Nantes,SUBATECH, Nantes, France
[37] Goethe Univ Frankfurt, Inst Kernphys, D-6000 Frankfurt, Germany
[38] Univ Grenoble 1, CNRS, IN2P3, Inst Polytech Grenoble,LPSC, Grenoble, France
[39] Univ Santiago de Compostela, Dept Fis Particulas, Santiago De Compostela, Spain
[40] Univ Santiago de Compostela, IGFAE, Santiago De Compostela, Spain
[41] Oak Ridge Natl Lab, Oak Ridge, TN USA
[42] Helsinki Inst Phys, Jyvaskyla, Finland
[43] Univ Jyvaskyla, Jyvaskyla, Finland
[44] Sezione Ist Nazl Fis Nucl, Catania, Italy
[45] IRFU, Commissariat Energie Atom, Saclay, France
[46] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia
[47] Inst Phys, Bhubaneswar 751007, Orissa, India
[48] Univ Catania, Dipartimento Fis & Astron, Catania, Italy
[49] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
[50] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland
基金
中国国家自然科学基金; 美国国家科学基金会; 新加坡国家研究基金会; 巴西圣保罗研究基金会; 欧洲研究理事会; 芬兰科学院; 英国科学技术设施理事会; 美国能源部; 瑞典研究理事会;
关键词
ENERGY-LOSS; MESONS;
D O I
10.1103/PhysRevLett.109.112301
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The ALICE Collaboration has measured the inclusive production of muons from heavy-flavor decays at forward rapidity, 2.5 < y < 4, in pp and Pb-Pb collisions at root s(NN) = 2.76 TeV. The p(t)-differential inclusive cross section of muons from heavy-flavor decays in pp collisions is compared to perturbative QCD calculations. The nuclear modification factor is studied as a function of p(t) and collision centrality. A weak suppression is measured in peripheral collisions. In the most central collisions, a suppression of a factor of about 3-4 is observed in 6 < p(t) < 10 GeV/c. The suppression shows no significant p(t) dependence.
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页数:11
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