Cold nuclear matter effects on J/ψ production as constrained by deuteron-gold measurements at √SNN=200 GeV

被引：101

作者：

Adare, A. ^{[1
]}

Adler, S. S. ^{[5
]}

Afanasiev, S. ^{[24
]}

Aidala, C. ^{[10
,11
]}

Ajitanand, N. N. ^{[50
]}

Akiba, Y. ^{[25
,45
]}

Al-Bataineh, H. ^{[39
]}

Alexander, J. ^{[50
]}

Al-Jamel, A. ^{[39
]}

Aoki, K. ^{[29
,44
]}

Aphecetche, L. ^{[52
]}

Armendariz, R. ^{[39
]}

Aronson, S. H. ^{[5
]}

Asai, J. ^{[45
]}

Atomssa, E. T. ^{[30
]}

Averbeck, R. ^{[51
]}

Awes, T. C. ^{[40
]}

Azmoun, B. ^{[5
]}

Babintsev, V. ^{[20
]}

Baksay, G. ^{[16
]}

Baksay, L. ^{[16
]}

Baldisseri, A. ^{[13
]}

Barish, K. N. ^{[6
]}

Barnes, P. D. ^{[32
]}

Bassalleck, B. ^{[38
]}

Bathe, S. ^{[35
]}

Batsouli, S. ^{[10
,11
,40
]}

Baublis, V. ^{[43
]}

Bauer, F. ^{[6
]}

Bazilevsky, A.

Belikov, S.

Bennett, R. ^{[51
]}

Berdnikov, Y. ^{[47
]}

Bickley, A. A. ^{[1
]}

Bjorndal, M. T. ^{[10
,11
]}

Boissevain, J. G. ^{[32
]}

Borel, H. ^{[13
]}

Boyle, K. ^{[51
]}

Brooks, M. L. ^{[32
]}

Brown, D. S. ^{[39
]}

Bruner, N. ^{[38
]}

Bucher, D.

Buesching, H. ^{[35
]}

Bumazhnov, V. ^{[20
]}

Bunce, G. ^{[45
]}

Burward-Hoy, J. M. ^{[31
,32
]}

Butsyk, S.

Camard, X. ^{[52
]}

Campbell, S. ^{[51
]}

Chand, P. ^{[4
]}

机构：

[1] Univ Colorado, Boulder, CO 80309 USA

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

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

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

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

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

[7] Charles Univ Prague, CZ-11636 Prague, Czech Republic

[8] CIAE, Beijing, Peoples R China

[9] Univ Tokyo, Grad Sch Sci, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan

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

[11] Nevis Labs, Irvington, NY 10533 USA

[12] Czech Tech Univ, CZ-16636 Prague 6, Czech Republic

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

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

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

[16] Florida Inst Technol, Melbourne, FL 32901 USA

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

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

[19] Hiroshima Univ, Higashihiroshima 7398526, Japan

[20] State Res Ctr Russian Federat, Inst High Energy Phys, RU-142281 Protvino, Russia

[21] Univ Illinois, Urbana, IL 61801 USA

[22] Acad Sci Czech Republ, Inst Phys, CZ-18221 Prague 8, Czech Republic

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

[24] Joint Inst Nucl Res, RU-141980 Dubna, Moscow Region, Russia

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

[26] Hungarian Acad Sci, KFKI Res Inst Particle & Nucl Phys, MTA, RMKI, H-1525 Budapest 114, Hungary

[27] Korea Univ, Seoul 136701, South Korea

[28] Russian Res Ctr, Kurchatov Inst, Moscow, Russia

[29] Kyoto Univ, Kyoto 6068502, Japan

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

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

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

[33] Univ Blaise Pascal, CNRS, IN2P3, LPC, F-63177 Aubiere, France

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

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

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

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

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

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

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

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

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

[43] Petersburg Nucl Phys Inst, RU-188300 Gatchina, Leningrad Regio, Russia

[44] RIKEN, Wako, Saitama 3510198, Japan

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

[46] Rikkyo Univ, Dept Phys, Toshima Ku, Tokyo 1718501, Japan

[47] St Petersburg State Polytechn Univ, St Petersburg, Russia

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

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

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

来源：

PHYSICAL REVIEW C | 2008年 / 77卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.77.024912

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 present a new analysis of J/psi production yields in deuteron-gold collisions at root s(NN) =200 GeV using data taken from the PHENIX experiment in 2003 and previously published in S. S. Adler [Phys. Rev. Lett 96, 012304 (2006)]. The high statistics proton-proton J/psi data taken in 2005 are used to improve the baseline measurement and thus construct updated cold nuclear matter modification factors (R-dAu). A suppression of J/psi in cold nuclear matter is observed as one goes forward in rapidity (in the deuteron-going direction), corresponding to a region more sensitive to initial-state low-x gluons in the gold nucleus. The measured nuclear modification factors are compared to theoretical calculations of nuclear shadowing to which a J/psi (or precursor) breakup cross section is added. Breakup cross sections of sigma(breakup)=2.8(-1.4)(+1.7) (2.2(-1.5)(+1.6)) mb are obtained by fitting these calculations to the data using two different models of nuclear shadowing. These breakup cross-section values are consistent within large uncertainties with the 4.2 +/- 0.5 mb determined at lower collision energies. Projecting this range of cold nuclear matter effects to copper-copper and gold-gold collisions reveals that the current constraints are not sufficient to firmly quantify the additional hot nuclear matter effect.

引用

页数：15

共 18 条

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