Systematic Studies on the β-decay Half-lives of r-process Nuclei

被引：0
|
作者：
Li, Zhihong [1 ]
Zhou, Yong [1 ]
Li, XinYue [1 ]
Wang, Youbao [1 ]
Guo, Bing [1 ]
Nan, Ding [1 ]
Liu, Weiping [1 ]
机构：
[1] China Inst Atom Energy, Beijing 102413, Peoples R China
来源：
16TH INTERNATIONAL SYMPOSIUM ON CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS (CGS16) | 2018年 / 178卷
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1051/epjconf/201817804006
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on the accurate macroscopic-microscopic mass formula and the experimental data of beta-decay half-lives of the nuclei with atomic number ranging from 20 to 190, a systematic formula has been proposed to calculate beta-decay half-lives of neutron-rich nuclei. The formula is proved to reproduce the experimental beta-decay half-lives of neutron-rich nuclei very well, and then is used to study the r-process nucleosynthesis in models of high-entropy mass outflows. The calculated abundances show a good agreement with the solar r-abundances around the third peak and the rare earth mass region.
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