Comparison of space-time evolutions of hot / dense matter in S(NN)**1/2 = 17-GeV and 130-GeV relativistic heavy ion collisions based on a hydrodynamical model
Comparison of space-time evolutions of hot / dense matter in S(NN)**1/2 = 17-GeV and 130-GeV relativistic heavy ion collisions based on a hydrodynamical model
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基于流体动力学模型的 S(NN)**1/2 = 17-GeV 和 130-GeV 相对论性重离子碰撞中热/致密物质时空演化的比较
DOI：
10.1103/physrevc.66.054904
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Tetsufumi Hirano
中科院分区：
文献类型：
--
作者：
K. Morita;S. Muroya;C. Nonaka;Tetsufumi Hirano
基于流体动力学模型，我们比较了RHIC中130 GeV/$ a $ Au+Au碰撞和SPS中17 GeV/$ a $ Pb+Pb碰撞。该模型较好地再现了RHIC和SPS的单粒子分布。
Based on a hydrodynamical model, we compare 130 GeV/$A$ Au+Au collisions at RHIC and 17 GeV/$A$ Pb+Pb collisions at SPS. The model well reproduces the single-particle distributions of both RHIC and SPS.
The numerical solution indicates that huge amount of collision energy in RHIC is mainly used to produce a large extent of hot fluid rather than to make a high temperature matter; longitudinal extent of the hot fluid in RHIC is much larger than that of SPS and initial energy density of the fluid is only 5% higher than the one in SPS. The solution well describes the HBT radii at SPS energy but shows some deviations from the ones at RHIC.