Development of relativistic shock waves in viscous gluon matter

被引：20

作者：

Bouras, I. ^{[1
]}

Molnar, E. ^{[2
]}

Niemi, H. ^{[2
]}

Xu, Z. ^{[1
]}

El, A. ^{[1
]}

Fochler, O. ^{[1
]}

Greiner, C. ^{[1
]}

Rischke, D. H. ^{[1
,2
]}

机构：

[1] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany

[2] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

来源：

NUCLEAR PHYSICS A | 2009年 / 830卷

关键词：

HEAVY-ION COLLISIONS; HYDRODYNAMICS; PLASMA;

D O I：

10.1016/j.nuclphysa.2009.10.121

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：

To investigate the formation and the propagation of relativistic shock waves in viscous gluon matter we solve the relativistic Riemann problem using a microscopic parton cascade. We demonstrate the transition from ideal to viscous shock waves by varying the shear viscosity to entropy density ratio eta/s. We show that an eta/s ratio larger than 0.2 prevents the development of well-defined shock waves on time scales typical for ultrarelativistic heavy-ion collisions. These findings are confirmed by Viscous hydrodynamic calculations.

引用

页码：741C / 744C

页数：4

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