Correlation between alpha-particle preformation factor and alpha decay energy | |
Deng, Jun-Gang2; Zhang, Hong-Fei1,2,3,4 | |
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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论