Two pion mediated scalar isoscalar NN interaction in the nuclear medium -: art. no. 014004

被引：6

作者：

Kaskulov, MM ^{[1
]}

Oset, E ^{[1
]}

Vacas, MJV ^{[1
]}

机构：

[1] Univ Valencia, CSIC, Ctr Mixto, Inst Invest Paterna,Dept Fis Teor, E-46071 Valencia, Spain

来源：

PHYSICAL REVIEW C | 2006年 / 73卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.73.014004

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 the modification of the nucleon-nucleon interaction in a nuclear medium in the scalar isoscalar channel, mediated by the exchange of two correlated (sigma channel) or uncorrelated pions. For this purpose we use a standard approach for the renormalization of pions in nuclei. The corrections obtained for the NN interaction in the medium in this channel are of the order of 20% of the free one in average, and the consideration of short-range correlations plays an important role in providing these moderate changes. Yet, the corrections are sizable enough to suggest further studies of the stability and properties of nuclear matter.

引用

页数：15

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