J/ψ production at low transverse momentum in p plus p and d plus Au collisions at √sNN=200 GeV

被引:13
作者
Adamczyk, L. [1 ]
Adkins, J. K. [20 ]
Agakishiev, G. [18 ]
Aggarwal, M. M. [32 ]
Ahammed, Z. [50 ]
Alekseev, I. [16 ]
Aparin, A. [18 ]
Arkhipkin, D. [3 ]
Aschenauer, E. C. [3 ]
Attri, A. [32 ]
Averichev, G. S. [18 ]
Bai, X. [7 ]
Bairathi, V. [28 ]
Bellwied, R. [46 ]
Bhasin, A. [17 ]
Bhati, A. K. [32 ]
Bhattarai, P. [45 ]
Bielcik, J. [10 ]
Bielcikova, J. [11 ]
Bland, L. C. [3 ]
Bordyuzhin, I. G. [16 ]
Bouchet, J. [19 ]
Brandenburg, J. D. [38 ]
Brandin, A. V. [27 ]
Bunzarov, I. [18 ]
Butterworth, J. [38 ]
Caines, H. [54 ]
Sanchez, M. Calderon de la Barca [5 ]
Campbell, J. M. [30 ]
Cebra, D. [5 ]
Chakaberia, I. [3 ]
Chaloupka, P. [10 ]
Chang, Z. [44 ]
Chatterjee, A. [50 ]
Chattopadhyay, S. [50 ]
Chen, J. H. [41 ]
Chen, X. [22 ]
Cheng, J. [47 ]
Cherney, M. [9 ]
Christie, W. [3 ]
Contin, G. [23 ]
Crawford, H. J. [4 ]
Das, S. [13 ]
De Silva, L. C. [9 ]
Debbe, R. R. [3 ]
Dedovich, T. G. [18 ]
Deng, J. [40 ]
Derevschikov, A. A. [34 ]
di Ruzza, B. [3 ]
Didenko, L. [3 ]
机构
[1] AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland
[2] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA
[3] Brookhaven Natl Lab, Upton, NY 11973 USA
[4] Univ Calif Berkeley, Berkeley, CA 94720 USA
[5] Univ Calif Davis, Davis, CA 95616 USA
[6] Univ Calif Los Angeles, Los Angeles, CA 90095 USA
[7] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
[8] Univ Illinois, Chicago, IL 60607 USA
[9] Creighton Univ, Omaha, NE 68178 USA
[10] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic
[11] Nucl Phys Inst AS CR, Prague 25068, Czech Republic
[12] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany
[13] Inst Phys, Bhubaneswar 751005, Orissa, India
[14] Indian Inst Technol, Bombay 400076, Maharashtra, India
[15] Indiana Univ, Bloomington, IN 47408 USA
[16] Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia
[17] Univ Jammu, Jammu 180001, India
[18] Joint Inst Nucl Res, Dubna 141980, Russia
[19] Kent State Univ, Kent, OH 44242 USA
[20] Univ Kentucky, Lexington, KY 40506 USA
[21] Korea Inst Sci & Technol Informat, Taejon 305701, South Korea
[22] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
[23] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[24] Lehigh Univ, Bethlehem, PA 18015 USA
[25] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[26] Michigan State Univ, E Lansing, MI 48824 USA
[27] Natl Res Nucl Univ, MEPhI, Moscow 115409, Russia
[28] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India
[29] Natl Cheng Kung Univ, Tainan 70101, Taiwan
[30] Ohio State Univ, Columbus, OH 43210 USA
[31] Inst Nucl Phys PAN, PL-31342 Krakow, Poland
[32] Panjab Univ, Chandigarh 160014, India
[33] Penn State Univ, University Pk, PA 16802 USA
[34] Inst High Energy Phys, Protvino 142281, Russia
[35] Purdue Univ, W Lafayette, IN 47907 USA
[36] Pusan Natl Univ, Pusan 46241, South Korea
[37] Univ Rajasthan, Jaipur 302004, Rajasthan, India
[38] Rice Univ, Houston, TX 77251 USA
[39] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
[40] Shandong Univ, Jinan 250100, Shandong, Peoples R China
[41] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[42] SUNY Stony Brook, Stony Brook, NY 11794 USA
[43] Temple Univ, Philadelphia, PA 19122 USA
[44] Texas A&M Univ, College Stn, TX 77843 USA
[45] Univ Texas Austin, Austin, TX 78712 USA
[46] Univ Houston, Houston, TX 77204 USA
[47] Tsinghua Univ, Beijing 100084, Peoples R China
[48] US Naval Acad, Annapolis, MD 21402 USA
[49] Valparaiso Univ, Valparaiso, IN 46383 USA
[50] Ctr Variable Energy Cyclotron, Kolkata 700064, India
基金
美国国家科学基金会; 新加坡国家研究基金会;
关键词
QUARK-GLUON PLASMA; NUCLEAR-MATTER; STAR; SUPPRESSION; COLLABORATION; PERSPECTIVE; PROTON;
D O I
10.1103/PhysRevC.93.064904
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We report on the measurement of J/psi production in the dielectron channel at midrapidity (vertical bar y vertical bar < 1) in p + p and d + Au collisions at root s(NN) = 200 GeV from the STAR experiment at the Relativistic Heavy Ion Collider. The transverse momentum p(T) spectra in p + p for pT < 4 GeV/c and d + Au collisions for p(T) < 3 GeV/c are presented. These measurements extend the STAR coverage for J/psi production in p + p collisions to low p(T). The < p(T)(2)> from the measured J/psi invariant cross section in p + p and d + Au collisions are evaluated and compared to similar measurements at other collision energies. The nuclear modification factor for J/psi is extracted as a function of pT and collision centrality in d + Au and compared to model calculations using the modified nuclear parton distribution function and a final-state J/psi nuclear absorption cross section.
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页数:11
相关论文
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