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题名: Properties of nuclear matter from macroscopic-microscopic mass formulas
作者: Wang, N;  Liu, M;  Ou, L;  Zhang, YX
刊名: PHYSICS LETTERS B
出版日期: 2015
卷号: 751, 期号:0, 页码:553-558
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1016/j.physletb.2015.11.006
通讯作者: Wang, N (reprint author), Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China.
文章类型: Article
英文摘要: Based on the standard Skyrme energy density functionals together with the extended Thomas-Fermi approach, the properties of symmetric and asymmetric nuclear matter represented in two macroscopic-microscopic mass formulas: Lublin-Strasbourg nuclear drop energy (LSD) formula and Weizsacker-Skyrme (WS*) formula, are extracted through matching the energy per particle of finite nuclei. For LSD and WS*, the obtained incompressibility coefficients of symmetric nuclear matter are K-infinity=230 +/- 11 MeV and 235 +/- 11 MeV, respectively. The slope parameter of symmetry energy at saturation density is L = 41.6 +/- 7.6 MeV for LSD and 51.5 +/- 9.6 MeV for WS*, respectively, which is compatible with the liquid-drop analysis of Lattimer and Lim [4]. The density dependence of the mean-field isoscalar and isovector effective mass, and the neutron-proton effective masses splitting for neutron matter are simultaneously investigated. The results are generally consistent with those from the Skyrme Hartree-Fock-Bogoliubov calculations and nucleon optical potentials, and the standard deviations are large and increase rapidly with density. A better constraint for the effective mass is helpful to reduce uncertainties of the depth of the mean-field potential. (C) 2015 The Authors. Published by Elsevier B.V.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: HEAVY-ION COLLISIONS ;  SYMMETRY ENERGY ;  DENSITY ;  EQUATION ;  STATE
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11275052, 11365004, 11365005, 11475262, 11422548, 11265004] ;  National Key Basic Research-Development Program of China [2013CB834404] ;  Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF041CJ1]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20746
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Recommended Citation:
Wang, N,Liu, M,Ou, L,et al. Properties of nuclear matter from macroscopic-microscopic mass formulas[J]. PHYSICS LETTERS B,2015,751(0):553-558.
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