Magic numbers for superheavy nuclei in relativistic continuum Hartree-Bogoliubov theory

被引：159

作者：

Zhang, W

Meng, J ^{[1
]}

Zhang, SQ

Geng, LS

Toki, H

机构：

[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[2] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China

[3] Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China

[4] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka 5670047, Japan

来源：

NUCLEAR PHYSICS A | 2005年 / 753卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.nuclphysa.2005.02.086

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The magic proton and neutron numbers are searched in the superheavy region with proton number Z = 100-140 and neutron number N = (Z + 30)-(2Z + 32) in the relativistic continuum Hartree-Bogoliubov (RCHB) theory with effective interactions NL1, NL3, NLSH, TM1, TW99, DD-ME], PK1, and PK1R. Based on the two-nucleon separation energies S-2p and S-2n, the two-nucleon gaps delta(2p) and delta(2n), the shell correction energies E-shell(p) and E-shell(n), the pairing energies E-pair(p) and E-pair(n). and the pairing gaps Delta(p) and Delta(n) Z 120, 132, and 138 and N = 172, 184, 198, 228, 238, and 258 are suggested to be the magic numbers within the present approach. The of-decay half-lives are also discussed. In addition, the potential energy surfaces of possible doubly magic nuclei are obtained by using the deformation-constrained relativistic mean field (RMF) theory, and the shell effects stabilizing nuclei are investigated. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：106 / 135

页数：30

共 65 条

[61] RELATIVISTIC MEAN-FIELD THEORY FOR UNSTABLE NUCLEI WITH NONLINEAR SIGMA-TERM AND OMEGA-TERM [J].