Isovector scalar field effects in asymmetric nuclear matter
文献类型：期刊论文
| 作者 | Liu Bo; Shen Cai-Wan; Di Toro, M.; Zhao En-Guang ; Liu, B , Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
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| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
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| 出版日期 | 2008 |
| 卷号 | 49期号:1页码:199-206 |
| 关键词 | Neutron-stars Equation State Flow |
| ISSN号 | 0253-6102 |
| 英文摘要 | Density-dependent parametrization models of the nucleon-meson coupling constants, including the isovector scalar delta-field, are applied to asymmetric nuclear matter. The nuclear equation of state (EOS) and the neutron star properties are studied in a relativistic Lagrangian density, using the relativistic mean field (RMF) hadron theory. It is known that the delta-fleld in the constant coupling scheme leads to a larger repulsion in dense neutron-rich matter and to a definite splitting of proton and neutron effective masses, finally influences the stability of the neutron stars. We use density-dependent models of the nucleon-meson couplings to study the properties of neutron star matter and to reexamine the delta-held effects in asymmetric nuclear matter. Our calculation shows that the stability conditions of the neutron star matter can be improved in presence of the delta-meson in the density-dependent models of the coupling constants. The EOS of nuclear matter strongly depends on the density dependence of the interactions. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000252640100041 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5594]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Liu, B , Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Bo,Shen Cai-Wan,Di Toro, M.,et al. Isovector scalar field effects in asymmetric nuclear matter[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2008,49(1):199-206. |
| APA | Liu Bo,Shen Cai-Wan,Di Toro, M.,Zhao En-Guang,&Liu, B , Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China.(2008).Isovector scalar field effects in asymmetric nuclear matter.COMMUNICATIONS IN THEORETICAL PHYSICS,49(1),199-206. |
| MLA | Liu Bo,et al."Isovector scalar field effects in asymmetric nuclear matter".COMMUNICATIONS IN THEORETICAL PHYSICS 49.1(2008):199-206. |
入库方式： OAI收割
来源：理论物理研究所
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