Deformation Effect on the Center-of-Mass Correction Energy in Nuclei Ranging from Oxygen to Calcium  

作　　者：赵鹏巍 孙保元 孟杰 

机构地区：[1]School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 [2]School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191 [3]Department of Physics, University of Stellenbosch, Stellenbosch, South Africa

出　　处：《Chinese Physics Letters》2009年第11期30-32,共3页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program （2007CB815000）, and the National Natural Science Foundation of China （10775004 and 10975008）.

摘　　要：The microscopic c.m. correction energies for nuclei ranging from oxygen to calcium are systematically calculated by both spherical and axially deformed relativistic mean-field （RMF） models with the effective interaction PK1. The microscopic c.m. correction energies strongly depend on the isospin as well as deformation and deviate from the phenomenological ones. The deformation effect is discussed in detail by comparing the deformed with the spherical RMF calculation. It is found that the direct and exchange terms of the c.m. correction energies are strongly correlated with the density distribution of nuclei and are suppressed in the deformed case.The microscopic c.m. correction energies for nuclei ranging from oxygen to calcium are systematically calculated by both spherical and axially deformed relativistic mean-field （RMF） models with the effective interaction PK1. The microscopic c.m. correction energies strongly depend on the isospin as well as deformation and deviate from the phenomenological ones. The deformation effect is discussed in detail by comparing the deformed with the spherical RMF calculation. It is found that the direct and exchange terms of the c.m. correction energies are strongly correlated with the density distribution of nuclei and are suppressed in the deformed case.

关 键 词：Nuclear physics 

分 类 号：O571.2[理学—粒子物理与原子核物理] TJ9[理学—物理]