Nuclear symmetry energy in relativistic mean field theory
文献类型：期刊论文
| 作者 | Ban, SF; Meng, J; Satula, W; Wyss, RA |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2006-02-09 |
| 卷号 | 633页码:231-236 |
| 关键词 | relativistic mean field nuclear symmetry energy mean level density isovector potential |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2005.11.077 |
| 英文摘要 | The physical origin of the nuclear symmetry energy is studied within the relativistic mean field (RMF) theory. Based on the nuclear binding energies calculated with and without mean isovector potential for several isobaric chains we confirm earlier Skyrme-Hartree-Fock result that the nuclear symmetry energy strength depends on the mean level spacing epsilon(A) and an effective mean isovector potential strength K(A). A detailed analysis of the isospin dependence of these two components contributing to the nuclear symmetry energy reveals a quadratic dependence due to the mean-isoscalar potential, similar to epsilon T-2, and, completely unexpectedly, the presence of a strong linear component similar to kappa T(T + 1 + epsilon/kappa) in the isovector potential. The latter generates a nuclear symmetry energy in RMF theory that is proportional to E-sym similar to T(T + 1) at variance to the non-relativistic calculation. The origin of the linear term in RMF theory needs to be further explored. (c) 2005 Elsevier B.V. All rights reserved. |
| WOS关键词 | FINITE NUCLEI ; LEVEL DENSITY ; DEFORMATIONS ; ISOSPACE ; MASSES ; STATES ; HALO |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000235098500016 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/26094]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Wyss, RA |
| 作者单位 | 1.AlbaNova Univ Ctr, Royal Inst Technol, S-10691 Stockholm, Sweden 2.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 4.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 5.Univ Warsaw, Inst Theoret Phys, PL-00681 Warsaw, Poland |
| 推荐引用方式 GB/T 7714 | Ban, SF,Meng, J,Satula, W,et al. Nuclear symmetry energy in relativistic mean field theory[J]. PHYSICS LETTERS B,2006,633:231-236. |
| APA | Ban, SF,Meng, J,Satula, W,&Wyss, RA.(2006).Nuclear symmetry energy in relativistic mean field theory.PHYSICS LETTERS B,633,231-236. |
| MLA | Ban, SF,et al."Nuclear symmetry energy in relativistic mean field theory".PHYSICS LETTERS B 633(2006):231-236. |
入库方式： OAI收割
来源：近代物理研究所
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