Origin of symmetry energy in finite nuclei and density dependence of nuclear matter symmetry energy from measured alpha-decay energies
文献类型：期刊论文
| 作者 | Dong, Jianmin1; Zuo, Wei1 ; Gu, Jianzhong2
|
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2013-01-07 |
| 卷号 | 87 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.87.014303 |
| 文献子类 | Article |
| 英文摘要 | Based on the Skyrme energy density functional, the spatial distribution of the symmetry energy of a finite nucleus is derived in order to examine whether the symmetry energy of a finite nucleus originates from its interior or from its surface. It is found that the surface part of a heavy nucleus contributes dominantly to its symmetry energy compared to its inner part. The symmetry energy coefficient a(sym)(A) is then directly extracted and the ratio of the surface symmetry coefficient to the volume symmetry coefficient kappa is estimated. Meanwhile, with the help of experimental alpha-decay energies, a macroscopic method is developed to determine the symmetry energy coefficient of heavy nuclei. The resultant a(sym)(A) is used to analyze the density dependence of the symmetry energy coefficient of nuclear matter around the saturation density, and furthermore, the neutron skin thickness of Pb-208 is deduced which is consistent with the pygmy dipole resonance analysis. In addition, it is shown that the ratio kappa obtained from the macroscopic method is in agreement with that from the Skyrme energy density functional. Thus the two completely different approaches may validate each other to achieve more compelling results. DOI: 10.1103/PhysRevC.87.014303 |
| WOS关键词 | FOCK-BOGOLYUBOV EQUATIONS ; NEUTRON-STAR ; ISOSPIN ASYMMETRY ; PHYSICS ; RADII |
| 资助项目 | Funds for Creative Research Groups of China[11021504] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000313159400002 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/48421]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Dong, Jianmin |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.China Inst Atom Energy, Beijing 102413, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Jianmin,Zuo, Wei,Gu, Jianzhong. Origin of symmetry energy in finite nuclei and density dependence of nuclear matter symmetry energy from measured alpha-decay energies[J]. PHYSICAL REVIEW C,2013,87. |
| APA | Dong, Jianmin,Zuo, Wei,&Gu, Jianzhong.(2013).Origin of symmetry energy in finite nuclei and density dependence of nuclear matter symmetry energy from measured alpha-decay energies.PHYSICAL REVIEW C,87. |
| MLA | Dong, Jianmin,et al."Origin of symmetry energy in finite nuclei and density dependence of nuclear matter symmetry energy from measured alpha-decay energies".PHYSICAL REVIEW C 87(2013). |
入库方式： OAI收割
来源：近代物理研究所
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