用有限温度自洽半经典方法研究热核上巨共振的性质

THE PROPERTITIES OF GIANT RESONANCED ON HOT NUC-LEI STUDIED BY FINITE TEMPERATURE SELFCO-NSISTENT SEMICLASSICAL APPROACH

对于温度为几个MeV的情形,我们直接将自洽半经典方法由零温度推广到有限温度。利用此方法确定了一定温度下热核的核子密度ρ_和ρ_p。在此基础上用sum rule方法研究了建立于热核上巨共振的性质,特别分析了它们的centroid的温度移动。部分结果同HF,RPA计算及实验事实作了比较。

The selfconsistent semiclassical approach is extended from the case of zero temperature to finite temperature to determine the nucleon densities of hot nuclei. The properties of giant resonances on hot nuclei, espencially the temperature dependence of the centroids, are evaluated and analysed with help of the densities above determined. Some of the present results are compared with those of HF and RPA.