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Ban, SF; Meng, J; Satula, W; Wyss, RA; Wyss, RA , AlbaNova Univ Ctr, Royal Inst Technol, S-10691 Stockholm, Sweden | |
Nuclear symmetry energy in relativistic mean field theory | |
Source Publication | PHYSICS LETTERS B |
Keyword | Finite Nuclei Level Density Deformations Isospace Masses States Halo |
Abstract | 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. |
2006 | |
ISSN | 0370-2693 |
Volume | 633Issue:40942Pages:231-236 |
Subject Area | Physics |
Indexed By | SCI |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itp.ac.cn/handle/311006/6045 |
Collection | 理论物理所科研产出_SCI论文 |
Corresponding Author | Wyss, RA , AlbaNova Univ Ctr, Royal Inst Technol, S-10691 Stockholm, Sweden |
Recommended Citation 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(40942):231-236. |
APA | Ban, SF,Meng, J,Satula, W,Wyss, RA,&Wyss, RA , AlbaNova Univ Ctr, Royal Inst Technol, S-10691 Stockholm, Sweden.(2006).Nuclear symmetry energy in relativistic mean field theory.PHYSICS LETTERS B,633(40942),231-236. |
MLA | Ban, SF,et al."Nuclear symmetry energy in relativistic mean field theory".PHYSICS LETTERS B 633.40942(2006):231-236. |
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