Mass number scaling in ultra-relativistic nuclear collisions from a hydrodynamical approach

被引：16

作者：

Sollfrank, J ^{[1
]}

Huovinen, P

Ruuskanen, PV

机构：

[1] Univ Bielefeld, Fak Phys, D-4800 Bielefeld, Germany

[2] Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland

来源：

EUROPEAN PHYSICAL JOURNAL C | 1999年 / 6卷 / 03期

关键词：

D O I：

10.1007/s100529800934

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the different nucleus-nucleus collisions, O+Au, S+S, S+Ag, S+Au and Pb+Pb, at the CERN-SPS energy in a one-fluid hydrodynamical approach using a parametrization based on baryon stopping in terms of the thickness of colliding nuclei. Good agreement with measured particle spectra is achieved. We deduce the mass number scaling behaviour of the initial energy density. We find that the equilibration time is nearly independent of the size of the colliding nuclei.

引用

页码：525 / 536

页数：12

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