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arXiv · nucl-th/9510031

Nuclear Reactions of Astrophysical Interest Involving Light Nuclei

H. Oberhummer·W. Balogh·V. D. Efros·H. Herndl·R. Hofinger
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Abstract

An introduction to nucleosynthesis, the creation of the elements in the big bang, in interstellar matter and in stars is given. The two--step process $^4$He(2n,$γ$)$^6$He and the reverse photodisintegration $^6$He($γ$,2n)$^4$He involving the halo nucleus $^6$He could be of importance in the $α$--process in type--II supernovae. The reaction rates for the above processes are calculated using three--body methods and show an enhancement of more than three orders of magnitude compared to the previous adopted value. Direct--capture calculations give similar values for the above reaction rates. Therefore, this method was also used to calculate the reaction rates of the two--step processes $^6$He(2n,$γ$)$^8$He and $^9$Li(2n,$γ$)$^{11}$Li and the reverse photodisintegration of $^8$He and $^{11}$Li that could be also of importance in the $α$-process.

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H. Oberhummer, W. Balogh, V. D. Efros, H. Herndl, R. Hofinger. 1995-10-16. Nuclear Reactions of Astrophysical Interest Involving Light Nuclei. https://arxiv.org/abs/nucl-th/9510031

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