Direct photon production from viscous quark-gluon plasma

被引：8
|
作者：
Chaudhuri, A. K. [1 ]
Sinha, Bikash [1 ]
机构：
[1] Ctr Variable Energy Cyclotron, Kolkata 700064, India
来源：
PHYSICAL REVIEW C | 2011年 / 83卷 / 03期
关键词：
PERSPECTIVE; COLLISIONS;
D O I：
10.1103/PhysRevC.83.034905
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 simulate direct photon production in the evolution of viscous quark-gluon plasma medium. Photons from Compton and annihilation processes are considered. The viscous effect on photon production is very strong and reliable simulation is possible only in a limited p(T) range. For minimally viscous fluid (eta/s = 0.08), direct photons can be reliably computed only up to p(T) <= 1.3 GeV. With reduced viscosity (eta/s = 0.04), the limit increases to p(T) <= 2 GeV.
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页数：5
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