Measurement of the midrapidity transverse energy distribution from √SNN=130 GeV Au+Au collisions at RHIC -: art. no. 052301

被引：148

作者：

Adcox, K

Adler, SS

Ajitanand, NN

Akiba, Y

Alexander, J

Aphecetche, L

Arai, Y

Aronson, SH

Averbeck, R

Awes, TC

Barish, KN

Barnes, PD

Barrette, J

Bassalleck, B

Bathe, S

Baublis, V

Bazilevsky, A

Belikov, S

Bellaiche, FG

Belyaev, ST

Bennett, MJ

Berdnikov, Y

Botelho, S

Brooks, ML

Brown, DS

Bruner, N

Bucher, D

Buesching, H

Bumazhnov, V

Bunce, G

Burward-Hoy, J

Butsyk, S

Carey, TA

Chand, P

Chang, J

Chang, WC

Chavez, LL

Chernichenko, S

Chi, CY

Chiba, J

Chiu, M

Choudhury, RK

Christ, T

Chujo, T

Chung, MS

Chung, P

Cianciolo, V

Cole, BA

D'Enterria, DG

David, G

机构：

[1] Vanderbilt Univ, Nashville, TN 37232 USA

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

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

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

[5] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, 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] Columbia Univ, New York, NY 10027 USA

[10] Nevis Labs, Irvington, NY 10533 USA

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

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

[13] Hiroshima Univ, Higashihiroshima 7398526, Japan

[14] Inst High Energy Phys, Protvino, Russia

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

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

[17] Korea Univ, Seoul 136701, South Korea

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

[19] Kyoto Univ, Kyoto 606, Japan

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

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

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

[23] McGill Univ, Montreal, PQ H3A 2T8, Canada

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

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

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

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

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

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

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

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

[32] Petersburg Nucl Phys Inst, Gatchina, Russia

[33] RIKEN, Wako, Saitama 3510198, Japan

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

[35] Univ Nantes, Ecole Mines Nantes, SUBATECH, CNRS,IN2P3, F-44307 Nantes 3, France

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

[37] Univ Tennessee, Knoxville, TN 37996 USA

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

[39] Univ Tokyo, Tokyo, Japan

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

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

[42] Weizmann Inst Sci, IL-76100 Rehovot, Israel

[43] Yonsei Univ, IPAP, Seoul 120749, South Korea

[44] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.87.052301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first measurement of energy produced transverse to the beam direction at the Relativistic Heavy-Ion Collider at Brookhaven National Laboratory is presented. The midrapidity transverse energy density per participating nucleon rises steadily with the number of participants, closely paralleling the rise in charged-particle density, such that (E-T)/(N-ch) remains relatively constant as a function of centrality. The energy density calculated via Bjorken's prescription for the 2% most central Au + Au collisions at rootS(NN) = 130 GeV is at least epsilon (Bj) = 4.6 GeV/fm(3), which is a factor of 1.6 larger than found at rootS(NN) = 17.2 GeV (Pb + Pb at CERN).

引用

页码：52301 / 1

页数：6

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