Event-by-event fluctuations in ultrarelativistic heavy-ion collisions

被引：102

作者：

Baym, G

Heiselberg, H

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[2] NORDITA, DK-2100 Copenhagen O, Denmark

来源：

PHYSICS LETTERS B | 1999年 / 469卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

relativistic heavy-ion collisions; fluctuations; event-by-event analyses;

D O I：

10.1016/S0370-2693(99)01263-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Motivated by forthcoming experiments at RHIC and LHC, we study event-by-event fluctuations in ultrarelativistic heavy-ion collisions in participant nucleon as well as thermal models. The calculated physical observables, including multiplicity, kaon to pion ratios, and transverse momenta agree well with recent NA49 data at the SPS, and indicate that such studies do not yet reveal the presence of new physics. Finally, we present a simple model of how a first order phase transition can be signaled by very large fluctuations. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：7 / 11

页数：5

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