QCD susceptibilities and nuclear-matter saturation in a relativistic chiral theory

被引：23

作者：

Chanfray, G ^{[1
]}

Ericson, M

机构：

[1] CNRS, IPN, IN2P3, F-69622 Villeurbanne, France

[2] Univ Lyon 1, F-69622 Villeurbanne, France

[3] CERN, Div Theory, CH-1211 Geneva, Switzerland

来源：

EUROPEAN PHYSICAL JOURNAL A | 2005年 / 25卷 / 01期

关键词：

D O I：

10.1140/epja/i2005-10074-6

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 investigate the evolutions with density of the QCD scalar susceptibility and of the sigma mass in a chiral relativistic theory of nuclear matter, in the mean-field approximation. In order to reach saturation we need to introduce the scalar response of the nucleons. The consequences are a quite mild density dependence of the sigma mass and the progressive decoupling of the quark density fluctuations from the nucleonic ones at large densities.

引用

页码：151 / 157

页数：7

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