Critical temperature of liquid-gas phase transition for hot nuclear matter and three-body force effect
文献类型：期刊论文
| 作者 | Lu, GC; Zuo, W ; Luo, PY; Li, ZH
|
| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 29期号:11页码:1061-1066 |
| 关键词 | microscopic three-body force finite temperature BHF approach nuclear matter liquid-gas phase transition critical temperature |
| ISSN号 | 0254-3052 |
| 英文摘要 | The finite temperature Brueckner-Hartree-Fock (FTBHF) approach is extended by introducing a microscopic three-body force. Within the extended approach, the three-body force effects on the equation of state of hot nuclear matter and its temperature dependence have been investigated. The critical properties of the liquid-gas phase transition of hot nuclear matter have been calculated. It is shown that the three-body force provides a repulsive contribution to the equation of state of hot nuclear matter. The repulsive effect of the three-body force becomes more pronounced as the density and temperature increase and consequently inclusion of the three-body force contribution in the calculation reduces the predicted critical temperature from about 16MeV to about 13MeV. By separating the contribution originated from the 2 sigma-exchange process coupled to the virtual excitation of a nucleon-antinucleon pair from the full three-body force, the connection between the three-body force effect and the relativistic correction from the Dirac-Brueckner-Hartree-Fock has been explored. It turns out that the contribution of the 2 sigma-N (N) over bar part is more repulsive than that of the full three-body force and the calculated critical temperature is about 11MeV if only the 2 sigma-N (N) over bar component of the three-body force is included which is lower than the value obtained in the case of including the full three-body force and is close to the value predicted by the Dirac-Brueckner-Hartree-Fock (DBHF). approach. Our result provides a reasonable explanation for the discrepancy between the values of critical temperature predicted from the FTBHF approach including the three-body force and the DBHF approach. |
| WOS关键词 | PROTONEUTRON STARS ; BRUECKNER APPROACH ; STATE ; EQUATION |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000233323300007 |
| 出版者 | SCIENCE PRESS |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/1093]  |
| 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 | Zuo, W |
| 作者单位 | 1.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, GC,Zuo, W,Luo, PY,et al. Critical temperature of liquid-gas phase transition for hot nuclear matter and three-body force effect[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2005,29(11):1061-1066. |
| APA | Lu, GC,Zuo, W,Luo, PY,&Li, ZH.(2005).Critical temperature of liquid-gas phase transition for hot nuclear matter and three-body force effect.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,29(11),1061-1066. |
| MLA | Lu, GC,et al."Critical temperature of liquid-gas phase transition for hot nuclear matter and three-body force effect".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 29.11(2005):1061-1066. |
入库方式： OAI收割
来源：近代物理研究所
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