QUARK CONDENSATE IN A MEDIUM AND PION-NUCLEON SIGMA-TERM BASED ON A QCD-LIKE THEORY

被引：8

作者：

FUJII, H ^{[1
]}

TSUE, Y ^{[1
]}

机构：

[1] KOCHI UNIV,DEPT PHYS,KOCHI 780,JAPAN

来源：

PHYSICS LETTERS B | 1995年 / 357卷 / 1-2期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/0370-2693(95)00903-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Within the renormalization group improved ladder approximation, the Schwinger-Dyson equation for quarks is applied to evaluate the pion-nucleon sigma term and the quark condensate at low densities. It is found that this approach presents fair results close to empirical values for these quantities in the light-quark sector as well as the strange sector.

引用

页码：199 / 203

页数：5

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