ANISOTROPY AS A SIGNATURE OF TRANSVERSE COLLECTIVE FLOW

被引:1197
作者
OLLITRAULT, JY
机构
[1] Service de Physique Théorique, Centre d'Études de Saclay
来源
PHYSICAL REVIEW D | 1992年 / 46卷 / 01期
关键词
D O I
10.1103/PhysRevD.46.229
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We show that anisotropies in transverse-momentum distributions provide an unambiguous signature of transverse collective flow in ultrarelativistic nucleus-nucleus collisions. We define a measure of the anisotropy from experimental observables. The anisotropy coming from collective effects is estimated quantitatively using a hydrodynamical model, and compared to the anisotropy originating from finite multiplicity fluctuations. We conclude that collective behavior could be seen in Pb-Pb collisions if a few hundred particle momenta were measured in a central event.
引用
收藏
页码:229 / 245
页数:17
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