Jet structure of baryon excess in Au+Au collisions at √SNN=200 GeV -: art. no. 051902

被引：63

作者：

Adler, SS

Afanasiev, S

Aidala, C

Ajitanand, NN

Akiba, Y

Al-Jamel, A

Alexander, J

Amirikas, R

Aoki, K

Aphecetche, L

Armendariz, R

Aronson, SH

Averbeck, R

Awes, TC

Azmoun, R

Babintsev, V

Baldisseri, A

Barish, KN

Barnes, PD

Bassalleck, B

Bathe, S

Batsouli, S

Baublis, V

Bauer, F

Bazilevsky, A

Belikov, S

Berdnikov, Y

Bhagavatula, S

Bjorndal, MT

Boissevain, JG

Borel, H

Borenstein, S

Brooks, ML

Brown, DS

Bruner, N

Bucher, D

Buesching, H

Bumazhnov, V

Bunce, G

Burward-Hoy, JM

Butsyk, S

Camard, X

Chai, JS

Chand, P

Chang, WC

Chernichenko, S

Chi, CY

Chiba, J

Chiu, M

Choi, IJ

机构：

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

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

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

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

[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] Nevuis Labs, Irvington, NY 10533 USA

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

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

[12] Debrecen Univ, 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, RU-141980 Dubna, Moscow Region, Russia

[21] Cyclotron Applicat Lab, KAERI, Seoul, South Korea

[22] Kangnung Natl Univ, Kangnung 210702, South Korea

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

[24] Res Inst Particle & Nucl Phys, KFKI, H-1525 Budapest, Hungary

[25] Korea Univ, Seoul 136701, South Korea

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

[27] Kyoto Univ, Kyoto 606, Japan

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[42] Petersburg Nucl Phys Inst, Gatchina, Russia

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

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

[45] St Petersburg State Tech Univ, St Petersburg, Russia

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

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

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

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

[50] Univ Nantes, CNRS, IN2P3, Ecol Mines Nantes,SUBATECH, F-44307 Nantes, France

来源：

PHYSICAL REVIEW C | 2005年 / 71卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.71.051902

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：

Two particle correlations between identified meson and baryon trigger particles with 2.5<p(T)(T)(<4.0 GeV/c and lower p) (charged hadrons have been measured at midrapidity by the PHENIX experiment at RHIC in p+p,d+Au, and Au+Au collisions at s)(NN) = 200 GeV. In noncentral Au+Au collisions, the probability of finding a hadron near in azimuthal angle to the trigger particles is almost identical for mesons and baryons and significantly higher than in p+p collisions. The associated yields for trigger baryons decrease in the most central collisions, consistent with some baryon production by thermal recombination in addition to hard scattering.

引用

页数：6

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