Thermal properties of asymmetric nuclear matter with an improved isospin- and momentum-dependent interaction

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	Thermal properties of asymmetric nuclear matter with an improved isospin- and momentum-dependent interaction
	Xu, J; Chen, LW; Li, BA
刊名	PHYSICAL REVIEW C
	2015
卷号	91 期号:1 页码:14611
通讯作者	Xu, J (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
英文摘要	Thermal properties of asymmetric nuclear matter, including the temperature dependence of the symmetry energy, single-particle properties, and differential isospin fractionation, are investigated with different neutronproton effective mass splittings by using an improved isospin- and momentum-dependent interaction. In this improved interaction, the momentum dependence of the isoscalar single-particle potential at saturation density is well fit to that extracted from optical-model analyses of proton-nucleus scattering data up to the nucleon kinetic energy of 1 GeV, and the isovector properties, i.e., the slope of the nuclear symmetry energy, the momentum dependence of the symmetry potential, and the symmetry energy at saturation density, can be flexibly adjusted via three parameters: x, y, and z, respectively. Our results indicate that the nucleon phase-space distribution in equilibrium, the temperature dependence of the symmetry energy, and the differential isospin fractionation can be significantly affected by the isospin splitting of the nucleon effective mass.
学科主题	Physics
类目[WOS]	Physics, Nuclear
关键词[WOS]	HEAVY-ION COLLISIONS ; EFFECTIVE-MASS ; NEUTRON ; PROTON ; CONSTRAINTS ; SCATTERING ; EQUATION ; ENERGY ; STATE
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21110]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Xu, J,Chen, LW,Li, BA. Thermal properties of asymmetric nuclear matter with an improved isospin- and momentum-dependent interaction[J]. PHYSICAL REVIEW C,2015,91(1):14611.
APA	Xu, J,Chen, LW,&Li, BA.(2015).Thermal properties of asymmetric nuclear matter with an improved isospin- and momentum-dependent interaction.PHYSICAL REVIEW C,91(1),14611.
MLA	Xu, J,et al."Thermal properties of asymmetric nuclear matter with an improved isospin- and momentum-dependent interaction".PHYSICAL REVIEW C 91.1(2015):14611.