The nuclear deformation and the preformation factor in the α-decay of heavy and superheavy nuclei

被引：49

作者：

Guo, Shuqing ^{[1
]}

Bao, Xiaojun ^{[1
]}

Gao, Yuan ^{[1
,3
]}

Li, Junqing ^{[1
,2
]}

Zhang, Hongfei ^{[1
]}

机构：

[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[3] Hangzhou Dianzi Univ, Sch Informat Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

NUCLEAR PHYSICS A | 2015年 / 934卷

基金：

中国国家自然科学基金;

关键词：

alpha-decay; Preformation factor; Nuclear deformation; Superheavy nuclei; HARTREE-BOGOLIUBOV THEORY; HALF-LIVES; SHELL; PARTICLES; EMISSION;

D O I：

10.1016/j.nuclphysa.2014.12.001

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 potential barrier for a-decay is constructed using a generalized liquid drop model (GLDM) by taking into account the mass and charge asymmetry, and the proximity energy. Further considering the deformation of the daughter nucleus, the alpha-decay half-lives of 158 even even nuclei from Z = 62 to Z = 118 are systematically studied and an analytic expression for a particle preformation is proposed, which turns out to produce accurate results and show shell structure. Some predictions are made for the very neutron-deficient and superheavy nuclei (SHN) where the experimental values are absent from the NUBASE2012 table. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：110 / 120

页数：11

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