Investigation on the deformation of Ne and Mg isotope chains within relativistic mean-field model
Chen Jin-Gen (陈金根)abc, Cai Xiang-Zhou (蔡翔舟)a, Wang Ting-Tai (王庭太)d, Ma Yu-Gang (马余刚)a, Ren Zhong-Zhou (任中洲)e, Fang De-Qing (方德清)a, Zhong Chen (钟晨)a, Wei Yi-Bin (魏义彬)ac, Guo Wei (郭威)ac, Zhou Xing-Fei (周星飞)acf, Wang Kun (王鲲)ac, Ma Guo-Liang (马国亮)ac, Tian Wen-Dong (田文栋)a, Chen Jin-Hui (陈金辉)ac, Yan Ting-Zhi (颜廷志)ac, Zuo Jia-Xu (左嘉旭)ac, Ma Chun-Wang (马春旺)ac, Shen Wen-Qing (沈文庆)a
a Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China; b College of Science, Zhejiang Forestry University, Hangzhou 311300, China; c Graduate School of the Chinese Academy of Sciences, Beijing 100039, China; d Department of Mathematics and Physics,Zhongyuan Institute of Technology, 450007, Chinae Department of Physics, Nanjing University, Nanjing 210008, Chinaf College of Sciences, Ningbo University, Ningbo 315211, China
Abstract Ne and Mg isotope chains are investigated based on constrained calculations in the framework of a deformed relativistic mean-field (RMF) model with the NL075 parameter set. The calculated quadrupole deformation and binding energy are compared with other theoretical results as well as the available experimental data. It shows that the calculated deformations of Ne and Mg with the NL075 are more accurate than those obtained with the NL-SH. It is predicted that $^{19,29,32}$Ne and $^{20,31}$Mg maybe have a triaxial deformation and $^{25-28}$Ne and $^{27-30}$Mg exhibit a shape coexistence probably. The closure effect of neutron number N = 8 for $^{20}$Mg is predicted to be very weak.
Received: 26 January 2005
Revised: 20 June 2005
Accepted manuscript online:
PACS:
21.60.Jz
(Nuclear Density Functional Theory and extensions (includes Hartree-Fock and random-phase approximations))
Fund: Project supported by the Major State Basic Research Development Program of China (Grant No G2000077404), the National Natural Science Foundation of China (Grant Nos 10125521, 10475108, 10405032 and 10328259), the Fund of the Education Ministry of China (Grant No 20010284036) and the Shanghai Phosphor Program (Grant No 03 QA 14066).
Cite this article:
Chen Jin-Gen (陈金根), Cai Xiang-Zhou (蔡翔舟), Wang Ting-Tai (王庭太), Ma Yu-Gang (马余刚), Ren Zhong-Zhou (任中洲), Fang De-Qing (方德清), Zhong Chen (钟晨), Wei Yi-Bin (魏义彬), Guo Wei (郭威), Zhou Xing-Fei (周星飞), Wang Kun (王鲲), Ma Guo-Liang (马国亮), Tian Wen-Dong (田文栋), Chen Jin-Hui (陈金辉), Yan Ting-Zhi (颜廷志), Zuo Jia-Xu (左嘉旭), Ma Chun-Wang (马春旺), Shen Wen-Qing (沈文庆) Investigation on the deformation of Ne and Mg isotope chains within relativistic mean-field model 2005 Chinese Physics 14 2444
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