期刊
PHYSICS LETTERS B
卷 817, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2021.136283
关键词
Triple alpha reaction; Nucleosynthesis; Radiative-decay probability
资金
- JSPS KAKENHI [JP15H02091, JP19H05604]
- Fonds De La Recherche Scientifique -FNRS [4.45.10.08]
- [JP14J01256]
By measuring the H-1(C-12, Cp-12) reaction, this study determined the radiative-decay probability of the 3(1)(-) state in C-12 for the first time, and derived the triple alpha reaction rate in high temperature environments. The findings suggest that the 3(1)(-) state significantly enhances the triple alpha reaction rate.
The triple alpha reaction is one of the most important reactions in the nuclear astrophysics. However, its reaction rate in high temperature environments at T-9 > 2 was still uncertain. One of the major origins of the uncertainty was that the radiative-decay probability of the 3(1)(-) state in C-12 was unknown. In the present work, we have determined the radiative-decay probability of the 3(1)(-) state to be 1.3(-1.1)(+1.2) x 10(-6) by measuring the H-1(C-12, Cp-12) reaction for the first time, and derived the triple alpha reaction rate in high temperature environments from the measured radiative-decay probability. The present result suggests that the 3(1)(-) state noticeably enhances the triple alpha reaction rate although the contribution from the 3(1)(-) state had been assumed to be small. (C) 2021 Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据