Systematics of a-preformation factors in closed-shell regions

被引：1

作者：

Da-Ming Deng ^{[1
]}

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

机构：

[1] Key Laboratory of Modern Acoustics and Department of Physics,Nanjing University

[2] Center of Theoretical Nuclear Physics,National Laboratory of Heavy-Ion Accelerator

[3] State Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Science

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：

a-Preformation factors; a Clustering; a Decay; Medium and heavy-mass nuclei;

D O I：

暂无

中图分类号：

O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The a-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 a 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 a-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 a-decay half-lives.

引用

页码：156 / 162

页数：7

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