【摘 要】
:
在Brueckner-Hartree-Fock理论框架内,研究了自旋极化核物质的状态方程及其自旋依赖性,计算了相关的物理量如朗道参数G0和G′0,并着重讨论了三体核力的影响. 结果表明:在整个
【机 构】
:
中国科学院近代物理研究所,INFN-LNS
论文部分内容阅读
在Brueckner-Hartree-Fock理论框架内,研究了自旋极化核物质的状态方程及其自旋依赖性,计算了相关的物理量如朗道参数G0和G′0,并着重讨论了三体核力的影响. 结果表明:在整个自旋极化度范围内,自旋极化核物质的每核子能量随中子和质子自旋极化度的变化相当精确地满足二次方规律,而且在Brueckner-Hartree-Fock理论框架内,自旋非极化核物质的能量总是比相应的自旋极化核物质的能量低,这表明核物质中不会发生由自旋非极化态向自旋极化态的自发相变. 当密度较低时,三体核力对核物质状态方程的自旋依赖性的影响不明显;随着密度的增大,三体核力效应增强,而且三体核力使朗道参数G0和G′0增大,从而使核物质对于自旋涨落的稳定性增强.
其他文献
文中给出了原子核的核密度经验公式 ,建立了核密度与原子核的平均结合能之间的联系 ,由公式可以得出A≥ 12的所有核的核密度值 .利用公式给出的C ,Al,Ca ,Fe ,Sn和Pb核的核密
The microwave technology was introduced to separate naphthenic acids from diesel fuel. Thedecrease of zeta-potential of electric double layer on the W/O interfa
报道了经仔细设计的150MeV 6He+9Be实验,并在质心系大角度处测量 10Be和 11Be同位素产物的实验数据. 鉴别得到相应于单中子转移的371个 10Be事件,同时观测到了相应于双中子转
Gene selection (feature selection) is generally performed in gene space (feature space), where a very serious curse of dimensionality problem always exists beca
Chemical mechanical polishing (CMP) is a manufacturing process used to achieve high levels of global and local planarity. Currently, the slurries used in CMP us
In this paper, a new method of constructing symmetric (antisymmetric) scaling and wavelet filters is introduced, and we get a new type of wavelet system that ha
利用在束γ谱学技术,通过 128Te(10B,1p3n)134Ba反应研究了 134Ba的中、高自旋激发态. 实验中采用9套BGO(AC)HPGe探测器进行了γ-γ-t符合测量. 基于γ-γ符合关系、γ射线的
To elucidate the structures of SLA-DR (swine leukocyte antigen DR) genes of three Chinese pig strains (Gz, Bm and Yn), the SLA-DRA and SLA-DRB cDNA were amplifi
A time-dependent two-dimensional photochemical-dynamical coupling gravity wave model of sodium layer is developed, which combines the sodium photochemical theor
Europium ternary complex of Eu (NNA)3(NNA=o-naphthylacetic acid) was embedded in silica matrix at different ratios by sol-gel method. The luminescence propertie