Prethermalization and the first 1 fm/c of a heavy ion collision

被引：8

作者：

Borsányi, S ^{[1
]}

机构：

[1] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany

来源：

ACTA PHYSICA HUNGARICA A-HEAVY ION PHYSICS | 2005年 / 22卷 / 3-4期

关键词：

thermalization; field theory; 2PI effective action;

D O I：

10.1556/APH.22.2005.3-4.18

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：

The phenomenon of prethermalization and the subsequent steps of thermalization are analyzed in the framework of the chiral quark model. We solve the quantum equations of motion of the field theory derived from the 2PI effective action and study the time scales of equilibration. We find that already after a 0.6 fm/c long period of time some equilibrium features appear, even though the system is still far from equilibrium. This can be an important ingredient for understanding the success of ideal hydrodynamic description.

引用

页码：317 / 323

页数：7

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