Isospin-dependent properties of asymmetric nuclear matter in relativistic mean field models

doi:10.1103/PhysRevC.76.054316

	Isospin-dependent properties of asymmetric nuclear matter in relativistic mean field models
	Chen, Lie-Wen ; Ko, Che Ming ; Li, Bao-An
刊名	PHYSICAL REVIEW C
	2007-11
卷号	76
ISSN号	0556-2813
DOI	10.1103/PhysRevC.76.054316
英文摘要	Using various relativistic mean-field models, including nonlinear ones with meson field self-interactions, models with density-dependent meson-nucleon couplings, and point-coupling models without meson fields, we have studied the isospin-dependent bulk and single-particle properties of asymmetric nuclear matter. In particular, we have determined the density dependence of nuclear symmetry energy from these different relativistic mean-field models and compared the results with the constraints recently extracted from analyses of experimental data on isospin diffusion and isotopic scaling in intermediate energy heavy-ion collisions as well as from measured isotopic dependence of the giant monopole resonances in even-A Sn isotopes. Among the 23 parameter sets in the relativistic mean-field model that are commonly used for nuclear structure studies, only a few are found to give symmetry energies that are consistent with the empirical constraints. We have also studied the nuclear symmetry potential and the isospin splitting of the nucleon effective mass in isospin asymmetric nuclear matter. We find that both the momentum dependence of the nuclear symmetry potential at fixed baryon density and the isospin splitting of the nucleon effective mass in neutron-rich nuclear matter depend not only on the nuclear interactions but also on the definition of the nucleon optical potential.
WOS关键词	HEAVY-ION COLLISIONS ; EQUATION-OF-STATE ; GIANT MONOPOLE RESONANCE ; HARTREE-FOCK THEORY ; DIRAC-BRUECKNER APPROACH ; NEUTRON-STARS ; FINITE NUCLEI ; EXOTIC NUCLEI ; SYMMETRY ENERGY ; SKYRME PARAMETRIZATION
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000251327000033
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/56858]
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, Inst Theoret Phys, Shanghai 200240, Peoples R China 2.Ctr Theoret Nucl Phys, Nalt Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China 3.Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA 4.Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA 5.Texas A&M Univ, Dept Phys, Commerce, TX 75429 USA
推荐引用方式 GB/T 7714	Chen, Lie-Wen,Ko, Che Ming,Li, Bao-An. Isospin-dependent properties of asymmetric nuclear matter in relativistic mean field models[J]. PHYSICAL REVIEW C,2007,76.
APA	Chen, Lie-Wen,Ko, Che Ming,&Li, Bao-An.(2007).Isospin-dependent properties of asymmetric nuclear matter in relativistic mean field models.PHYSICAL REVIEW C,76.
MLA	Chen, Lie-Wen,et al."Isospin-dependent properties of asymmetric nuclear matter in relativistic mean field models".PHYSICAL REVIEW C 76(2007).