Hyperon coupling dependence of hadron matter properties in relativistic mean field model
文献类型：期刊论文
| 作者 | Mi, Ai-Jun; Zuo, Wei; Li, Ang |
| 刊名 | CHINESE PHYSICS
 |
| 出版日期 | 2007-11-01 |
| 卷号 | 16期号:11页码:3290-3296 |
| 关键词 | hyperon coupling strange meson field equations of state |
| ISSN号 | 1009-1963 |
| 英文摘要 | The properties of hadronic matter at beta equilibrium in a wide range of densities are described by appropriate equations of state in the framework of the relativistic mean field model. Strange meson fields, namely the scalar meson field sigma*(975) and the vector meson field sigma*(1020), are included in the present work. We discuss and compare the results of the equation of state, nucleon effective mass, and strangeness fraction obtained by adopting the TM1, TMA, and GL parameter sets for nuclear sector and three different choices for the hyperon couplings. We find that the parameter set TM1 favours the onset of hyperons most, while at high densities the GL parameter set leads to the most hyperon-rich matter. For a certain parameter set (e.g. TM1), the most hyperon-rich matter is obtained for the hyperon potential model. The influence of the hyperon couplings on the effective mass of nucleon, is much weaker than that on the nucleon parameter set. The nonstrange mesons dominate essentially the global properties of dense hyperon matter. The hyperon potential model predicts the lowest value of the neutron star maximum mass of about 1.45 M-sun to be 0.4-0.5 M-sun lower than the prediction by using the other choices for hyperon couplings. |
| WOS关键词 | NEUTRON-STARS ; QUANTUM HADRODYNAMICS ; NUCLEI ; HYPERNUCLEI |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000251053800024 |
| 出版者 | IOP PUBLISHING LTD |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/5857]  |
| 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.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mi, Ai-Jun,Zuo, Wei,Li, Ang. Hyperon coupling dependence of hadron matter properties in relativistic mean field model[J]. CHINESE PHYSICS,2007,16(11):3290-3296. |
| APA | Mi, Ai-Jun,Zuo, Wei,&Li, Ang.(2007).Hyperon coupling dependence of hadron matter properties in relativistic mean field model.CHINESE PHYSICS,16(11),3290-3296. |
| MLA | Mi, Ai-Jun,et al."Hyperon coupling dependence of hadron matter properties in relativistic mean field model".CHINESE PHYSICS 16.11(2007):3290-3296. |
入库方式： OAI收割
来源：近代物理研究所
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