Effect of sigma*, phi mesons on the neutron star matter at finite temperature
文献类型：期刊论文
| 作者 | Zhao Xian-Feng; Wang Shun-Jin; Zhang Hua; Jia Huan-Yu |
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2007-06-01 |
| 卷号 | 31页码:532-537 |
| 关键词 | neutron star hyperons equation of state |
| ISSN号 | 0254-3052 |
| 英文摘要 | Within the RMF approach, considering the contribution of sigma*, phi mesons and baryon octet {n, p, Lambda, Sigma(-), Sigma(0), Sigma(+), Xi(-),Xi(0)}, some properties of neutron star matter have been investigated in the temperature region between 5-15MeV. It is found that when the contributions of sigma*, phi mesons are included, (1) the critical baryon density decreases (but for the A hyperon, the effect is not obvious), but the number of hyperons increases; (2) the equation of state becomes soft at higher energy density; (3) the maximum mass decreases while the corresponding radius increases; (4) the central density, the central energy density, and the central pressure all become smaller. At T=5MeV and 10MeV and for Sigma(0),Xi(0),Sigma(+), the sigma*, phi mesons make critical baryon density greatly decrease; but at T=15MeV, 20MeV, and 25MeV, the effect is not obvious. However, for A, Sigma(-), Xi(-) hyperons, at all the above temperatures, the effect is not obvious. |
| WOS关键词 | HYPERNUCLEI ; NUCLEUS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000247043500004 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://119.78.100.186/handle/113462/27124]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Zhao Xian-Feng |
| 作者单位 | 1.Sichuan Univ, Coll Phys Sci & Technol, Chengdu 610065, Peoples R China 2.SW Jiaotong Univ, Dept Basic Courses Emei Campus, Emeishan 614202, Peoples R China 3.SW Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao Xian-Feng,Wang Shun-Jin,Zhang Hua,et al. Effect of sigma*, phi mesons on the neutron star matter at finite temperature[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2007,31:532-537. |
| APA | Zhao Xian-Feng,Wang Shun-Jin,Zhang Hua,&Jia Huan-Yu.(2007).Effect of sigma*, phi mesons on the neutron star matter at finite temperature.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,31,532-537. |
| MLA | Zhao Xian-Feng,et al."Effect of sigma*, phi mesons on the neutron star matter at finite temperature".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 31(2007):532-537. |
入库方式： OAI收割
来源：近代物理研究所
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