Correlation between alpha-particle preformation factor and alpha decay energy

doi:10.1016/j.physletb.2021.136247

	Correlation between alpha-particle preformation factor and alpha decay energy
	Deng, Jun-Gang 2; Zhang, Hong-Fei 1,2,3,4
刊名	PHYSICS LETTERS B
	2021-05-10
卷号	816 页码:7
ISSN号	0370-2693
DOI	10.1016/j.physletb.2021.136247
通讯作者	Zhang, Hong-Fei(zhanghongfei@lzu.edu.cn)
英文摘要	alpha-particle preformation factors, one of the most significant quantities in alpha decay, are systematically investigated, which are extracted from the ratios between theoretical alpha-decay half-lives calculated by the generalized liquid drop model and experimental data. The results indicate that both alpha-particle preformation factors P-alpha and alpha decay energy Q(alpha) are important observed quantities for revealing the nuclear shell structure information. And a nice linear relationship exists between log(10) P-alpha and Q(alpha)(-1/2), which means the famous Geiger-Nuttall law can not only describe alpha decay half-lives but deal with alpha-particle preformation factors, as well as the nuclear shell effects play key roles in alpha-particle preformation. Furthermore, the results indicate that Z = 82 and N = 126 closed shells play more important roles than Z = 50 and N = 82 shell closures in which the shell effect of N = 126 is stronger than that of Z = 82 in the alpha decay process. Besides, the unpaired nucleons will inhibit the preformation of alpha-particle. After considering the above significant physical effects, a global analytic formula with only twelve parameters for alpha-particle preformation factors is proposed based on the direct observation quantity of the nuclear shell effect i.e., alpha decay energy. The outstanding precision of this formula in describing the alpha-particle preformation factors indicates that it can be used to perform accurate calculations for alpha decay half-lives as well as provide some general guidance for microscopic study on alpha-particle preformation factors and nuclear structure. (C) 2021 The Author(s). Published by Elsevier B.V.
资助项目	SCOAP3
WOS关键词	SHELL-MODEL
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000647421500074
资助机构	SCOAP3
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/137358]
专题	中国科学院近代物理研究所
通讯作者	Zhang, Hong-Fei
作者单位	1.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China 2.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Joint Dept Nucl Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Deng, Jun-Gang,Zhang, Hong-Fei. Correlation between alpha-particle preformation factor and alpha decay energy[J]. PHYSICS LETTERS B,2021,816:7.
APA	Deng, Jun-Gang,&Zhang, Hong-Fei.(2021).Correlation between alpha-particle preformation factor and alpha decay energy.PHYSICS LETTERS B,816,7.
MLA	Deng, Jun-Gang,et al."Correlation between alpha-particle preformation factor and alpha decay energy".PHYSICS LETTERS B 816(2021):7.