Do we need to incorporate separate chemical and thermal freeze-outs in hydrodynamics?

被引：0
|
作者：
Arbex, N [1 ]
Grassi, F [1 ]
Hama, Y [1 ]
Socolowski, O [1 ]
机构：
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, SP, Brazil
来源：
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2002年 / 28卷 / 07期
关键词：
D O I：
10.1088/0954-3899/28/7/366
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 show how to incorporate separate chemical and thermal freeze-outs consistently in a hydrodynamical code via a modified equation of state (general case) or via a modified Cooper-Frye formula (particular case of T-ch.f. close to T-th.f. or few particle species undergoing early chemical freeze-out). We find that separate freeze-outs may cause faster cooling of the fluid and affect predicted values of observables such as abundances.
引用
收藏
页码：2029 / 2033
页数：5
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