Nuclear effects on hadron production in d plus Au collisions at √SNN=200 GeV revealed by comparison with p plus p data

被引：60

作者：

Adler, S. S. ^{[1
]}

Afanasiev, S.

Aidala, C.

Ajitanand, N. N.

Akiba, Y.

Al-Jamel, A.

Alexander, J.

Aoki, K.

Aphecetche, L.

Armendariz, R.

Aronson, S. H.

Averbeck, R.

Awes, T. C.

Babintsev, V.

Baldisseri, A.

Barish, K. N.

Barnes, P. D.

Bassalleck, B.

Bathe, S.

Batsouli, S.

Baublis, V.

Bauer, F.

Bazilevsky, A.

Belikov, S.

Bjorndal, M. T.

Boissevain, J. G.

Borel, H.

Brooks, M. L.

Brown, D. S.

Bruner, N.

Bucher, D.

Buesching, H.

Bumazhnov, V.

Bunce, G.

Burward-Hoy, J. M.

Butsyk, S.

Camard, X.

Chand, P.

Chang, W. C.

Chernichenko, S.

Chi, C. Y.

Chiba, J.

Chiu, M.

Choi, I. J.

Choudhury, R. K.

Chujo, T.

Cianciolo, V.

Cobigo, Y.

Cole, B. A.

Comets, M. P.

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 Study, Bunkyo Ku, Tokyo 1130033, Japan

[9] Univ Colorado, Boulder, CO 80309 USA

[10] Nevis Labs, Irvington, NY 10533 USA

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

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

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

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

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

[16] Hiroshima Univ, Higashihiroshima 7398526, Japan

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

[18] Univ Illinois, Urbana, IL 61801 USA

[19] Iowa State Univ Sci & Technol, Ames, IA 50011 USA

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

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

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

[23] Korea Univ, Seoul 136701, South Korea

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

[25] Kyoto Univ, Kyoto 6068502, Japan

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[46] Univ Tennessee, Knoxville, TN 37996 USA

[47] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

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

[49] Vanderbilt Univ, Nashville, TN 37235 USA

[50] Waseda Univ, Adv Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1620044, Japan

来源：

PHYSICAL REVIEW C | 2006年 / 74卷 / 02期

关键词：

D O I：

10.1103/PhysREvC.74.024904

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：

PHENIX has measured the centrality dependence of midrapidity pion, kaon, and proton transverse momentum distributions in d+Au and p+p collisions at root s(NN) = 200 GeV. The p+p data provide a reference for nuclear effects in d+Au and previously measured Au+Au collisions. Hadron production is enhanced in d+Au, relative to independent nucleon-nucleon scattering, as was observed in lower energy collisions. The nuclear modification factor for (anti)protons is larger than that for pions. The difference increases with centrality but is not sufficient to account for the abundance of baryon production observed in central Au+Au collisions at the BNL Relativistic Heavy Ion Collider (RHIC). The centrality dependence in d+Au shows that the nuclear modification factor increases gradually with the number of collisions encountered by each participant nucleon. We also present comparisons with lower energy data as well as with parton recombination and other theoretical models of nuclear effects on particle production.

引用

页数：13

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