Isospin dependence of three-body force rearrangement contribution
文献类型：期刊论文
| 作者 | Zuo Wei ; Xu Zhong-Feng
|
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2007 |
| 卷号 | 56期号:1页码:129-136 |
| 关键词 | rearrangement effect of three-body force Brueckner-Hartree-Fock approach isospin symmetry potential isospin splitting of nucleon effective mass |
| ISSN号 | 1000-3290 |
| 英文摘要 | Within the isospin-dependent Brueckner framework, we investigate the contribution of three-body force ( TBF) rearrangement to isospin symmetry potential as well as its momentum and density dependence. In particular, we investigate the TBF rearrangement effects on the isospin splitting of neutron and proton effective masses in neutron-rich nuclear matter. We show that the rearrangement contribution of TBF to neutron and proton single-particle potentials is repulsive and increases rapidly with increasing density and momentum. At low densities, the influence of the TBF rearrangement on symmetry potential is rather small, and the TBF rearrangement effect becomes more and more pronounced as the density rises. At high densities, the contribution of TBF rearrangement increases considerably the symmetry potential and modifies remarkably the momentum dependence of the symmetry potential. In both cases with and without including the TBF rearrangement contribution, the predicted neutron effective mass in neutron-rich matter is greater than the proton effective mass. The TBF rearrangement effect is to decrease remarkably both the proton and neutron effective masses, and reduce the magnitude of neutron-proton effective mass splitting in neutron-rich matter at high densities. |
| WOS关键词 | HEAVY-ION COLLISIONS ; ASYMMETRIC NUCLEAR-MATTER ; EFFECTIVE-MASS ; PROTONEUTRON STARS ; MOMENTUM ; STATE ; EQUATION ; ENERGY |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000243511600021 |
| 出版者 | CHINESE PHYSICAL SOC |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/6071]  |
| 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 Wei |
| 作者单位 | 1.Xi An Jiao Tong Univ, Sch Phys, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zuo Wei,Xu Zhong-Feng. Isospin dependence of three-body force rearrangement contribution[J]. ACTA PHYSICA SINICA,2007,56(1):129-136. |
| APA | Zuo Wei,&Xu Zhong-Feng.(2007).Isospin dependence of three-body force rearrangement contribution.ACTA PHYSICA SINICA,56(1),129-136. |
| MLA | Zuo Wei,et al."Isospin dependence of three-body force rearrangement contribution".ACTA PHYSICA SINICA 56.1(2007):129-136. |
入库方式： OAI收割
来源：近代物理研究所
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