Absence of suppression in particle production at large transverse momentum in √sNN=200 GeV d+Au collisions -: art. no. 072303

被引:385
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
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
Comets, MP
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] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India
[5] Univ Calif Riverside, Riverside, CA 92521 USA
[6] China Inst Atom Energy, Beijing, Peoples R China
[7] Univ Tokyo, Grad Sch Sci, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan
[8] Univ Colorado, Boulder, CO 80309 USA
[9] Columbia Univ, New York, NY 10027 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] Inst High Energy Phys, Protvino, Russia
[18] Univ Illinois, Urbana, IL 61801 USA
[19] Iowa State Univ, Ames, IA 50011 USA
[20] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia
[21] Natl Lab High Energy Phys, KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
[22] KFKI, Res Inst Particle & Nucl Phys RMKI, H-1525 Budapest 114, Hungary
[23] Korea Univ, Seoul 136701, South Korea
[24] Russian Res Ctr, Kurchatov Inst, Moscow, Russia
[25] Kyoto Univ, Kyoto 606, Japan
[26] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, 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, CNRS, IN2P3, LPC, F-63177 Clermont Ferrand, France
[30] Lund Univ, Dept Phys, SE-22100 Lund, Sweden
[31] Univ Munster, Inst Kernphys, D-48149 Munster, Germany
[32] Myongji Univ, Yongin 449728, Kyonggido, South Korea
[33] Nagasaki Inst Appl Sci, Nagasaki 8510193, Japan
[34] Univ New Mexico, Albuquerque, NM 87131 USA
[35] New Mexico State Univ, Las Cruces, NM 88003 USA
[36] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[37] Univ Paris 11, IPN, CNRS, IN2P3, F-91406 Orsay, France
[38] Peking Univ, Beijing 100871, Peoples R China
[39] Petersburg Nucl Phys Inst, Gatchina, Russia
[40] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[41] Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA
[42] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
[43] Seoul Natl Univ, Syst Elect Lab, Seoul, South Korea
[44] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA
[45] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
[46] Univ Nantes, CNRS, IN2P3, Ecole Mines Nantes,SUBATECH, F-20722 Nantes, France
[47] Univ Tennessee, Knoxville, TN 37996 USA
[48] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan
[49] Univ Tsukuba, Inst Phys, Tsukuba 305, Japan
[50] Vanderbilt Univ, Nashville, TN 37235 USA
关键词
D O I
10.1103/PhysRevLett.91.072303
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Transverse momentum spectra of charged hadrons with p(T)<8 GeV/c and neutral pions with p(T)<10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in d+Au collisions at roots(NN)=200 GeV. The measured yields are compared to those in p+p collisions at the same roots(NN) scaled up by the number of underlying nucleon-nucleon collisions in d+Au. The yield ratio does not show the suppression observed in central Au+Au collisions at RHIC. Instead, there is a small enhancement in the yield of high momentum particles.
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页数:6
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