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Single-nucleon potential decomposition of the nuclear symmetry energy

文献类型：期刊论文

作者Chen, Rong1; Cai, Bao-Jun1; Chen, Lie-Wen1,2; Li, Bao-An3; Li, Xiao-Hua1,4; Xu, Chang5
刊名PHYSICAL REVIEW C
出版日期2012-02-09
卷号85
ISSN号0556-2813
DOI10.1103/PhysRevC.85.024305
文献子类Article
英文摘要The nuclear symmetry energy E-sym(rho) and its density slope L(rho) can be decomposed analytically in terms of the single-nucleon potential in isospin asymmetric nuclear matter. Using three popular nuclear effective interaction models which have been extensively used in nuclear structure and reaction studies, namely, the isospin and momentum-dependent MDI interaction model, the Skyrme-Hartree-Fock approach, and the Gogny-Hartree-Fock approach, we analyze the contribution of different terms in the single-nucleon potential to E-sym(rho) and L(rho). Our results show that the observed different density behaviors of E-sym(rho) for different interactions are essentially due to the variation of the symmetry potential U-sym,1(rho, k). Furthermore, we find that the contribution of the second-order symmetry potential U-sym,2(rho, k) to L(rho) generally cannot be neglected. Moreover, our results demonstrate that the magnitude of U-sym,2(rho, k) is generally comparable with that of U-sym,1(rho, k), indicating that the second-order symmetry potential U-sym,2(rho, k) may have significant corrections to the widely used Lane approximation for the single-nucleon potential in extremely neutron rich or proton rich nuclear matter.
WOS关键词HARTREE-FOCK CALCULATIONS ; GROUND-STATE PROPERTIES ; HEAVY-ION COLLISIONS ; EQUATION-OF-STATE ; NEUTRON-STARS ; SKYRME PARAMETRIZATION ; SPHERICAL NUCLEI ; EFFECTIVE FORCES ; ISOSPIN PHYSICS ; FINITE NUCLEI
资助项目Research Fund of Doctoral Point (RFDP)[20070284016]
WOS研究方向Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000300092200001
源URL[http://119.78.100.186/handle/113462/47770]  
专题中国科学院近代物理研究所
通讯作者Chen, Lie-Wen
作者单位1.Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China
2.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
3.Texas A&M Univ, Dept Phys & Astron, Commerce, TX 75429 USA
4.Univ S China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China
5.Nanjing Univ, Dept Phys, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Rong,Cai, Bao-Jun,Chen, Lie-Wen,et al. Single-nucleon potential decomposition of the nuclear symmetry energy[J]. PHYSICAL REVIEW C,2012,85.
APA Chen, Rong,Cai, Bao-Jun,Chen, Lie-Wen,Li, Bao-An,Li, Xiao-Hua,&Xu, Chang.(2012).Single-nucleon potential decomposition of the nuclear symmetry energy.PHYSICAL REVIEW C,85.
MLA Chen, Rong,et al."Single-nucleon potential decomposition of the nuclear symmetry energy".PHYSICAL REVIEW C 85(2012).

入库方式： OAI收割

来源：近代物理研究所

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