Systematic study of two-proton radioactivity with a screened electrostatic barrier

被引：0

作者：

邹有甜 ^{[1
]}

潘霄 ^{[1
]}

李小华 ^{[1
,2
,3
]}

刘宏铭 ^{[1
]}

吴喜军 ^{[4
]}

何彪 ^{[5
]}

机构：

[1] School of Nuclear Science and Technology, University of South China

[2] Cooperative Innovation Center for Nuclear Fuel Cycle Technology & Equipment, University of South China

[3] Key Laboratory of Low Dimensional Quantum Structures and Quantum Control, Hunan Normal University

[4] School of Math and Physics, University of South China

[5] College of Physics and Electronics, Central South University

来源：

Chinese Physics C | 2021年 / 10期

基金：

中国国家自然科学基金;

关键词：

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：

In this study, a phenomenological model is proposed based on Wentzel-Kramers-Brillouin(WKB) theory and applied to investigate the two-proton( 2p) radioactive half-lives of nuclei near or beyond the proton drip line. The total diproton-daughter nucleus interaction potential is composed of the Hulthen-type electrostatic term and the centrifugal term. The calculated 2p radioactive half-lives can accurately reproduce the existing 10 experimental datasets of five true 2p radioactive nuclei with σ = 0.736. In addition, we extend this model to predict the half-lives of possible 2p radioactive nuclei whose 2p radioactivity is energetically allowed or observed but not yet quantified in NUBASE2016. The predicted results are in agreement with those obtained using the Gamow-like model, generalized liquid drop model, Sreeja formula, and Liu formula.

引用

页码：73 / 80

页数：8

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