基于形变Gamow-like模型研究原子核的单质子放射性半衰期
Half-lives for One-proton Radioactivity within the Deformed Gamow-like Model
肖琼 1程俊皓 1余同普1
作者信息
- 1. 国防科技大学理学院,长沙 410073
- 折叠
摘要
本工作通过引入原子核的形变改进了用于计算单质子放射性半衰期的Gamow-like模型.计算结果显示,相比于原Gamow-like模型,形变Gamow-like模型能够更好地再现单质子放射性实验数据.此外,通过研究单质子放射性半衰期实验值的对数形式和穿透概率计算值的对数形式之间的线性关系,证实了形变Gamow-like模型的可靠性.作为应用,使用形变Gamow-like模型预测了形变核的单质子放射性半衰期,预测的结果能够很好地符合Geiger-Nuttall定律.最后,通过研究轨道角动量与计算半衰期的关系,给出了母核109I和131Eu的角动量参考值,以获取更加准确的单质子放射性理论半衰期.这项工作有利于对质子滴线的研究以及新的单质子放射性半衰期的准确测量.
Abstract
In this work,the Gamow-like model for calculating the one-proton radioactivity half-life is improved by introdu-cing the deformation of the nucleus.The calculations show that the deformed Gamow-like model can reproduce the experi-mental data better than the Gamow-like model.In addition,the reliability of the deformed Gamow-like model is confirmed by studying the linear relationship between the logarithmic form of the experimental half-life and the logarithmic form of the the-oretical penetration probability.As an application,the one-proton radioactivity half-life of the deformed nucleus is predicted using the deformed Gamow-like model,and the predictions are able to comply well with the Geiger-Nuttall law.Finally,by studying the relationship between the orbital angular momentum and the calculated half-life,the reference values of the orbital angular momentum of 109I and 131Eu are given to obtain a more accurate theoretical half-life for one-proton radioactivity.
关键词
单质子放射性/半衰期/形变/Gamow-like模型Key words
one-proton radioactivity/half-life/deformation/Gamow-like model引用本文复制引用
基金项目
湖南省研究生创新基金资助项目(CX20210007)
出版年
2024
NETL
NSTL
万方数据