J/ψ production and nuclear effects for d+Au and p+p collisions at √SNN=200 GeV -: art. no. 012304

被引：115

作者：

Adler, SS ^{[1
]}

Afanasiev, S

Aidala, C

Ajitanand, NN

Akiba, Y

Al-Jamel, A

Alexander, J

Aoki, K

Aphecetche, L

Armendariz, R

Aronson, SH

Atomssa, ET

Averbeck, R

Awes, TC

Babintsev, V

Baldisseri, A

Barish, KN

Barnes, PD

Bassalleck, B

Bathe, S

Batsouli, S

Baublis, V

Bauer, F

Bazilevsky, A

Belikov, S

Bjorndal, MT

Boissevain, JG

Borel, H

Brooks, ML

Brown, DS

Bruner, N

Bucher, D

Buesching, H

Bumazhnov, V

Bunce, G

Burward-Hoy, JM

Butsyk, S

Camard, X

Chand, P

Chang, WC

Chernichenko, S

Chi, CY

Chiba, J

Chiu, M

Choi, IJ

Choudhury, RK

Chujo, T

Cianciolo, V

Cobigo, Y

Cole, BA

机构：

[1] Brookhaven Natl Lab, Upton, NY 11973 USA

[2] Abilene Christian Univ, Abilene, TX 79699 USA

[3] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[4] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

[5] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India

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

[7] China Inst Atom Energy, Beijing, Peoples R China

[8] Univ Tokyo, Grad Sch Sci, Ctr Nucl Studies, Tokyo 1130033, Japan

[9] Univ Colorado, Boulder, CO 80309 USA

[10] Columbia Univ, New York, NY 10027 USA

[11] Nevis Labs, Irvington, NY 10533 USA

[12] CEA Saclay, Dapnia, F-91191 Gif Sur Yvette, France

[13] Univ Debrecen, H-4010 Debrecen, Hungary

[14] Eotvos Lorand Univ, ELTE, H-1117 Budapest, Hungary

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

[16] Georgia State Univ, Atlanta, GA 30303 USA

[17] Hiroshima Univ, Higashihiroshima 7398526, Japan

[18] Inst High Energy Phys, IHEP Protvino, State Res Ctr Russian Federat, Protvino 142281, Russia

[19] Univ Illinois, Urbana, IL 61801 USA

[20] Iowa State Univ, Ames, IA 50011 USA

[21] Joint Inst Nucl Res, Dubna 141980, Russia

[22] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[23] Hungarian Acad Sci, KFKI Res Inst Particle & Nucl Phys, MTA, KFKI,RMKI, H-1525 Budapest, Hungary

[24] Korea Univ, Seoul 136701, South Korea

[25] IV Kurchatov Atom Energy Inst, Russian Res Ctr, Moscow 123182, Russia

[26] Kyoto Univ, Kyoto 6068502, Japan

[27] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France

[28] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[29] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[30] Univ Clermont Ferrand, LPC, CNRS, IN2P3, F-63177 Clermont Ferrand, France

[31] Lund Univ, Dept Phys, SE-22100 Lund, Sweden

[32] Univ Munster, Inst Kernphys, D-48149 Munster, Germany

[33] Myongji Univ, Yongin 449728, Kyonggido, South Korea

[34] Nagasaki Inst Appl Sci, Nagasaki 8510193, Japan

[35] Univ New Mexico, Albuquerque, NM 87131 USA

[36] New Mexico State Univ, Las Cruces, NM 88003 USA

[37] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[38] Univ Paris 11, IPN Orsay, CNRS, IN2P3, F-91406 Orsay, France

[39] Peking Univ, Beijing 100871, Peoples R China

[40] Petersburg Nucl Phys Inst, Gatchina 188300, Leningrad, Russia

[41] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[42] Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA

[43] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

[44] Seoul Natl Univ, Syst Elect Lab, Seoul, South Korea

[45] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA

[46] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[47] Univ Nantes, IN2P3, CNRS, SUBATECH,Ecole Mines Nantes, F-44307 Nantes, France

[48] Univ Tennessee, Knoxville, TN 37996 USA

[49] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[50] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 305, Japan

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.96.012304

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

J/psi production in d+Au and p+p collisions at root s(NN)=200 GeV has been measured by the PHENIX experiment at rapidities -2.2 < y <+2.4. The cross sections and nuclear dependence of J/psi production versus rapidity, transverse momentum, and centrality are obtained and compared to lower energy p+A results and to theoretical models. The observed nuclear dependence in d+Au collisions is found to be modest, suggesting that the absorption in the final state is weak and the shadowing of the gluon distributions is small and consistent with Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-based parametrizations that fit deep-inelastic scattering and Drell-Yan data at lower energies.

引用

页数：6

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