Cluster Structure in Be Isotopes within Point-Coupling Covariant Density Functional  

作　　者：TANG Zhong-Hua LI Jia-Xing JI Juan-Xia ZHOU Tao 唐中华;李加兴;姬娟霞;周涛(School of Physical Science and Technology,Southwest University,Chongqing 400715)

机构地区：[1]School of Physical Science and Technology,Southwest University,Chongqing 400715

出　　处：《Chinese Physics Letters》2013年第1期52-55,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(11075133,10205019);the Fundamental Research Funds for the Chinese Central Universities(XDJK2010D005,XDJK2010C049);the National Innovation Experimental Program for Chinese University Students(101063522).

摘　　要：The potential energy surfaces and density distributions of ground states in even-mass Be isotopes are studied by using the point-coupling covariant density functional theory with the PC-F1 effective interaction.The clustering structure is exhibited automatically in most of the Be isotopes.The results indicate that ^(6)Be has an α+2p clustering structure,while ^(8,10,14)Be have the 2αclustering structure.Theα–αdistances and the corresponding quadrupole deformation parameters have a similar evolution trend against the neutron number.

关 键 词：interaction. structure. number. 

分 类 号：O57[理学—粒子物理与原子核物理]