零声激励产生的结构函数
Structure functions generated by zero sound excitations
摘要：
在同位旋对称和非对称核物质中，我们研究了与零声激发有关的结构函数。在考虑Landau-Migdal准粒子相互作用的简单模型中，考虑了核物质对小矢量外场$V_0(ω,k)$的密度响应$Π^R(ω,k)$.在以前的文献中，我们得到了对称和非对称核物质中零声激发对应的色散方程的解$ω_{si}(k)$，$i=n,p,np$的复分支。现在我们基于这些解来研究核物质的结构和响应函数。
英文摘要：
In isospin symmetric and asymmetric nuclear matter we study the structure functions connected with the zero sound excitations. In the simple model with Landau-Migdal quasiparticle interactions the density response $Π^R(ω,k)$ of the nuclear matter to the small isovector external field $V_0(ω,k)$ is considered. In the previous papers the complex branches of solutions $ω_{si}(k)$, $i=n,p,np$ of the dispersion equation corresponding to zero sound excitations in the symmetric and asymmetric nuclear matter are obtained. Now we investigate the structure and response functions of nuclear matter based on these solutions.
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