Influence of Neutrino–Nuclear Reactions on the Abundance of 74 Se

The p-nuclei are supposed to be produced in different astrophysical processes, such as rapid-proton capture, photonuclear reaction, and neutrino-induced reaction. To date, their abundance cannot be reasonably explained. In the present work, the cross sections of the 74 Ge ( ν e , e − ) 74 As reactio...

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Bibliographic Details
Published in:The Astrophysical journal 2022-12, Vol.941 (1), p.56
Main Authors: Song, N., Zhang, S., Li, Z. H., Li, G. X., Gao, Z. C., Wang, H. K.
Format: Article
Language:English
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Summary:The p-nuclei are supposed to be produced in different astrophysical processes, such as rapid-proton capture, photonuclear reaction, and neutrino-induced reaction. To date, their abundance cannot be reasonably explained. In the present work, the cross sections of the 74 Ge ( ν e , e − ) 74 As reaction are calculated with the theoretical and experimental B (GT) values, respectively. The abundance ratios between 74 Se and 74 Ge produced from the neutrino process ( ν -process) are estimated based on the simple hypothesis for core-collapse supernova explosions. The results show that the upper limit of the 74 Se and 74 Ge abundance ratio resulting from the ν -process is about 36% of the value in the solar system.
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/aca328