Charged particle densities from Au plus Au collisions at √SNN=130 GeV

被引：167

作者：

Bearden, IG

Beavis, D

Besliu, C

Blyakhman, Y

Brzychezyk, J

Budick, B

Boggild, H

Chasman, C

Christensen, CH

Christiansen, P

Cibor, J

Debbe, R

Gaardhoje, JJ

Grotowski, K

Hagel, K

Hansen, O

Holm, A

Holme, AK

Ito, H

Jakobsen, E

Jipa, A

Jordre, JI

Jundt, F

Jorgensen, CE

Keutgen, T

Kim, EJ

Kozik, T

Larsen, TM

Lee, JH

Lee, YK

Lovhoiden, G

Majka, Z

Makeev, A

McBreen, E

Murray, M

Natowitz, J

Nielsen, BS

Olchanski, K

Olness, J

Ouerdane, D

Planeta, R

Rami, F

Röhrich, D

Samset, BH

Sanders, SJ

Sheetz, RA

Sosin, Z

Staszel, P

Thorsteinsen, TF

Tveter, TS

机构：

[1] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark

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

[3] Inst Rech Subatom, Strasbourg, France

[4] Univ Strasbourg, F-67000 Strasbourg, France

[5] Inst Nucl Phys, Krakow, Poland

[6] Jagiellonian Univ, Krakow, Poland

[7] Johns Hopkins Univ, Baltimore, MD 21218 USA

[8] NYU, New York, NY 10003 USA

[9] Texas A&M Univ, College Stn, TX 77843 USA

[10] Univ Bergen, Dept Phys, Bergen, Norway

[11] Univ Bucharest, Bucharest, Romania

[12] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA

[13] Univ Oslo, Dept Phys, Oslo, Norway

来源：

PHYSICS LETTERS B | 2001年 / 523卷 / 3-4期

基金：

新加坡国家研究基金会;

关键词：

D O I：

10.1016/S0370-2693(01)01333-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present charged particle densities as a function of pseudorapidity and collision centrality for the Au-197 + Au-197 reaction at roots(NN) = 130 GeV. An integral charged particle multiplicity of 3860 +/- 300 is found for the 5% most central events within the pseudorapidity range -4.7 less than or equal to eta less than or equal to 4.7. At mid-rapidity an enhancement in the particle yields per participant nucleon pair is observed for central events. Near to the beam rapidity, a scaling of the particle yields consistent with the "limiting fragmentation" picture is observed. Our results are compared to other recent experimental and theoretical discussions of charged particle densities in ultra-relativistic heavy-ion collisions. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：227 / 233

页数：7

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