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.
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页码：156 / 162
页数：7
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