1S0 Nucleon Superfluidity in Neutron Star Matter

被引：4

作者：

Xu Yan ^{[1
]}

Liu Guang-Zhou ^{[2
]}

Liu Cheng-Zhi ^{[1
]}

Fan Cun-Bo ^{[1
]}

Han Xing-Wei ^{[1
]}

Zhu Ming-Feng ^{[2
]}

Wang Hong-Yan

Zhang Xiao-Jun ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Observ, Natl Astron Observ, Changchun 130117, Peoples R China

[2] Jilin Univ, Ctr Theoret Phys, Changchun 130012, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2013年 / 30卷 / 06期

基金：

中国国家自然科学基金;

关键词：

DIRECT URCA PROCESSES; HYPERON; PROTON;

D O I：

10.1088/0256-307X/30/6/062101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the nucleon superfluidity in the S-1(0) channel in neutron star matter using the relativistic mean field theory and the BCS theory. We discuss particularly the influence of the isovector scalar interaction which is considered by exchanging.. meson on the nucleon superfluidity. It is found that the.. meson leads to a growth of the nucleon S-1(0) pairing energy gaps in a middle density range of the existing nucleon superfluidity. In addition, when the density rho(B) > 0.36 fm(-3), the proton S-1(0) pairing energy gap obviously decreases. The density range of the proton S-1(0) superfluidity is narrowed due to the presence of delta mesons. In our results, the delta meson not only changes the EOS and bulk properties but also changes the cooling properties of neutron stars.

引用

页数：4

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