The effect of the scalar-isovector meson field on hyperon-rich neutron star matter
文献类型：期刊论文
| 作者 | Li, Ang3; Mi, Ai-Jun1,2; Zuo, Wei1,2
|
| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS
 |
| 出版日期 | 2008-08-01 |
| 卷号 | 17期号:7页码:1293-1307 |
| 关键词 | scalar-isovector delta-meson relativistic mean field theory hyperonic neutron star matter properties of neutron stars |
| ISSN号 | 0218-3013 |
| 英文摘要 | We investigate the effect of the calar-isovector delta-meson field on the equation of state (EOS) and composition of hyperonic neutron star matter, and the properties of hyperonic neutron stars within the frame work of the relativistic mean field theory. The influence of the delta-field turns out to be quite different and generally weaker for hyperonic neutron star matter as compared to that for npe mu neutron star matter. We find that inclusion of the delta-field enhances the strangeness content slightly and consequently moderately softens the EOS of neutron star matter in its hyperonic phase. As for the composition of hyperonic star matter, the effect of the delta-field is shown to shift the onset of the negatively-charged (positively-charged) hyperons to slightly lower (higher) densities and to enhance (reduce) their abundances. The influence of the delta-field on the maximum mass of hyperonic neutron stars is found to be fairly weak, where as inclusion of the delta-field turns out to enhance sizably both the radii and the moments of inertia of neutron stars with given masses. It is also shown that the effects of the delta-field on the properties of hyperonic neutron stars remain similar in the case of switching off the Sigma hyperons. |
| WOS关键词 | EQUATIONS ; NUCLEI ; MODEL |
| 资助项目 | National Natural Science Foundation of China[10575119] ; Chinese Academy of Sciences[KJCX3-SYW-N2] ; Major State Basic Research Developing Program of China[2007CB815004] ; European Commission[CN/ASIA-LINK/008(94791)] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000259047600004 |
| 出版者 | WORLD SCIENTIFIC PUBL CO PTE LTD |
| 资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences ; Major State Basic Research Developing Program of China ; European Commission |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/6325]  |
| 专题 | 近代物理研究所_近代物理研究所知识存储（2010之前） |
| 通讯作者 | Mi, Ai-Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ang,Mi, Ai-Jun,Zuo, Wei. The effect of the scalar-isovector meson field on hyperon-rich neutron star matter[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS,2008,17(7):1293-1307. |
| APA | Li, Ang,Mi, Ai-Jun,&Zuo, Wei.(2008).The effect of the scalar-isovector meson field on hyperon-rich neutron star matter.INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS,17(7),1293-1307. |
| MLA | Li, Ang,et al."The effect of the scalar-isovector meson field on hyperon-rich neutron star matter".INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS 17.7(2008):1293-1307. |
入库方式： OAI收割
来源：近代物理研究所
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