Neutron star matter including delta isobars

被引：0
作者：
Liu, GZ [1 ]
Liu, W
Zhao, EG
机构：
[1] Jilin Univ, Ctr Theoret Phys, Changchun 130023, Peoples R China
[2] Jilin Univ, Dept Phys, Changchun 130023, Peoples R China
[3] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2004年 / 42卷 / 01期
关键词：
neutron star matter; relativistic mean field; equation of state; pion condensation;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper a new phase structure of neutron star matter including nucleons and delta isobars is presented. Particle fractions populated and pion condensations in neutron star matter are investigated in this model, The existence of the pion condensations can postpone the appearance of delta isobars' We found that both the pion condensation and reduce of the ratio of delta isobar to nucleons couplings can soften the corresponding equation of state. The maximum masses and their corresponding radii of neutron stars are calculated, and the obtained values are in observational region.
引用
收藏
页码：99 / 102
页数：4
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