Impact of Few-Body Reactions on Explosive Nucleosynthesis: The Big-Bang and Supernovae

Details Impact of Few-Body Reactions on Explosive Nucleosynthesis: The Big-Bang and Supernovae Impact of Few-Body Reactions on Explosive Nucleosynthesis: The Big-Bang and Supernovae

2000-06-06

arxiv.org/abs/astro-ph/0006079v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures. To appear in Few-Body Systems Suppl

Scientific paper

We study the few body reactions in explosive nucleosynthesis of light-to-heavy mass elements in various astrophysical conditions. In neutrino-driven winds of gravitational core collapse of SNeII, several light nuclei as well as heavy unstable nuclei paly significant roles in producing r-process elements. We discuss how the three-body reaction $^4$He$(\alpha n, \gamma)^9$Be, whose cross section is poorly known, plays very critical role. We make note that several other reactions in the r-process are relevant to a Big-Bang nucleosynthesis. We discuss briefly a Galactic chemical evolution.

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