Systematics of α-preformation factors in closed-shell regions

被引：0

作者：

Deng, Da-Ming ^{[1
,2
]}

Ren, Zhong-Zhou ^{[1
,2
,3
,4
]}

机构：

[1] Nanjing Univ, Key Lab Modern Acoust, Nanjing 210093, Jiangsu, Peoples R China

[2] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China

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

[4] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China

来源：

NUCLEAR SCIENCE AND TECHNIQUES | 2016年 / 27卷 / 06期

基金：

中国国家自然科学基金;

关键词：

alpha-Preformation factors; alpha Clustering; alpha Decay; Medium and heavy-mass nuclei; DECAY; CLUSTER;

D O I：

10.1007/s41365-016-0151-1

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The alpha-preformation factors of medium and heavy-mass nuclei are calculated by using the cluster-formation model. The obtained preformation factors of even-even, odd-A, and odd-odd nuclei consist in both magnitude and trend with the general features predicted by standard calculations. The variation of alpha clustering affected by the evolution of nuclear structure is observed from different behaviors of preformation factors. We typically analyze the variation of preformation factors in the closed-shell N = 126 and Z = 82 regions, and discuss in detail the structural effects on alpha-cluster formation. This work shows the strong correlation between a-preformation factors and the shell structure, which would be a useful reference for microscopic cluster-model calculations of alpha-decay half-lives.

引用

页数：7