推转相对论平均场方法中超形变核的全同带  

Identical Bands in Superdeformed Nuclei With the CrankedRelativistic Mean Field Method

作　　者：朱志远[1] 

机构地区：[1]中国科学院上海原子核研究所

出　　处：《高能物理与核物理》1996年第5期448-454,共7页High Energy Physics and Nuclear Physics

基　　金：中国国家自然科学基金;联邦德国研究和技术部资助

摘　　要：用转动框架中的相对论平均场理论描述超形变核．核流以及相应的矢量介子场空间分量全部被考虑在内．研究结果表明，在质量数相差二的原子核中特定轨道的填充能够产生这样的一些带，其退激发γ能量最多相差几个ｋｅＶ．理论结果在一定的角动量范围可以与实验值比较．Relativistic mean field theory in the rotating frame is used to describe superdeformed nuclei. Nuclear currents and the resulting spatial components of the vector meson fields are fully taken into account.It is shown that the filling of specific orbitals can lead to bands with deexcitation γ-ray energies differing by at most a few keV in nuclei with two mass units difference.The results is in a good agreement with the recent experimental data over a range of angular momenta.

关 键 词：相对论平均场 超形变核 全同带 核结构 

分 类 号：O572.2[理学—粒子物理与原子核物理] O412[理学—物理]