Partial restoration of chiral symmetry versus quark number density at zero temperature

被引：6

作者：

Chen, Huan ^{[1
]}

Yuan, Wei

Liu, Yu-Xin

机构：

[1] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2009年 / 36卷 / 06期

关键词：

DYSON-SCHWINGER EQUATIONS; CHEMICAL-POTENTIAL DEPENDENCE; NUCLEAR-MATTER; QCD; MODEL; PROPAGATOR; PHYSICS; RADIUS; MASS;

D O I：

10.1088/0954-3899/36/6/064073

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 calculate the chiral condensate and quark number density with both assumed analytical forms and numerical solution of the Dyson-Schwinger equation of the quark propagator at finite chemical potential. It shows that once the quark number density becomes nonzero, the chiral condensate below the Fermi surface is remarkably reduced and even has its sign flipped. It provides an explanation for the partial restoration of chiral symmetry in QCD matter.

引用

页数：6

共 26 条

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