Entropy in the quark-hadron transition

被引：2
|
作者：
Yamazaki, Kanako [1 ]
Matsui, T. [1 ]
Baym, Gordon [2 ]
机构：
[1] Univ Tokyo, Inst Phys, Tokyo 153, Japan
[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
来源：
NUCLEAR PHYSICS A | 2015年 / 933卷
基金：
美国国家科学基金会;
关键词：
Quark-hadron phase transition; PNJL model; Chiral phase transition; Confinement-deconfinement transition; Mesonic excitations; PHASE-TRANSITION; DYNAMICAL MODEL; PNJL MODEL; QCD; EVOLUTION; ANALOGY;
D O I：
10.1016/j.nuclphysa.2014.10.046
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 study, in the PNJL model, how the entropy of interacting quarks reflects the change in the effective degrees of freedom as the temperature increases through the quark-hadron phase transition. With inclusion of mesonic correlations, the effective degrees of freedom change from those of pi and sigma mesons at low temperatures to those of free quarks at high temperatures, with a resultant second order phase deconfinement transition in the chiral limit. (C) 2014 Elsevier B.V. All rights reserved.
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页码：245 / 255
页数：11
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