Hydrodynamical analysis of symmetric nucleus-nucleus collisions near 200A GeV

被引：37

作者：

Ornik, U

Plumer, M

Schlei, BR

Strottman, D

Weiner, RM

机构：

[1] UNIV MARBURG, DEPT PHYS, D-3550 MARBURG, GERMANY

[2] LOS ALAMOS NATL LAB, DIV THEORET, LOS ALAMOS, NM 87545 USA

来源：

PHYSICAL REVIEW C | 1996年 / 54卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.54.1381

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We present a coherent theoretical study of ultrarelativistic heavy-ion data obtained at the CERN/SPS by the NA35/NA49 Collaborations using (3+1)-dimensional relativistic hydrodynamics. We find excellent agreement with the rapidity spectra of negative hadrons and protons and with the correlation measurements in two experiments: S+S at 200A GeV and Pb+Pb at 160A GeV (preliminary results). Within our model this implies that for Pb+Pb (S+S) a quark-gluon plasma of initial volume 174 fm(3) (24 fm(3)) with a lifetime 3.4 fm/c (1.5 fm/c) was formed. It is found that the Bose-Einstein correlation measurements do not determine the maximal effective radii of the hadron sources because of the large contributions from resonance decay at small momenta. Also within this study we present an NA49 acceptance-corrected two-pion Bose-Einstein correlation function in the invariant variable Q(inv).

引用

页码：1381 / 1389

页数：9

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