Asymmetric nuclear matter from an extended Brueckner-Hartree-Fock approach

	Asymmetric nuclear matter from an extended Brueckner-Hartree-Fock approach
	Zuo, W ; Bombaci, I ; Lombardo, U
刊名	PHYSICAL REVIEW C
	1999-08-01
卷号	60 页码:13
ISSN号	0556-2813
英文摘要	The properties of isospin-asymmetric nuclear matter have been investigated in the framework of the extended Brueckner-Hartree-Fock approximation at zero temperature. Self-consistent calculations using the Argonne V-14 interaction are reported for several values of the asymmetry parameter beta = (N - Z)/A, ranging from symmetric nuclear matter to pure neutron matter. The binding energy per nucleon fulfills the beta(2) law in the whole asymmetry range. The symmetry energy is calculated for different densities and discussed in comparison with other predictions, At the saturation point it is in fairly good agreement with the empirical value. The present approximation, based on the Landau definition of quasiparticle energy, is investigated in terms of the Hugenholtz-Van Hove theorem, which is proved to be fulfilled with a good accuracy at various asymmetries. The isospin dependence of the single-particle properties is discussed, including mean field, effective mass, and mean free path of neutrons and protons. The isospin effects in nuclear physics and nuclear astrophysics are briefly discussed. [S0556-2813(99)03108-8].
WOS关键词	NEUTRON-STAR PROPERTIES ; MEAN FREE-PATH ; SEPARABLE REPRESENTATION ; SYMMETRY ENERGY ; EQUATION ; TEMPERATURE ; DEPENDENCE ; POTENTIALS ; EXPANSION
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000082051700037
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/36216]
专题	中国科学院近代物理研究所
通讯作者	Zuo, W
作者单位	1.Ist Nazl Fis Nucl, LNS, I-95123 Catania, Italy 2.Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy 3.Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy 4.Dipartimento Fis, I-95129 Catania, Italy 5.Acad Sinica, Inst Modern Phys, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Zuo, W,Bombaci, I,Lombardo, U. Asymmetric nuclear matter from an extended Brueckner-Hartree-Fock approach[J]. PHYSICAL REVIEW C,1999,60:13.
APA	Zuo, W,Bombaci, I,&Lombardo, U.(1999).Asymmetric nuclear matter from an extended Brueckner-Hartree-Fock approach.PHYSICAL REVIEW C,60,13.
MLA	Zuo, W,et al."Asymmetric nuclear matter from an extended Brueckner-Hartree-Fock approach".PHYSICAL REVIEW C 60(1999):13.