Hierarchical Bayesian Thermonuclear Rate for the $^7$Be(n,p)$^7$Li Big Bang Nucleosynthesis Reaction

Understand

Big bang nucleosynthesis provides the earliest probe of standard model physics, at a time when the universe was less than a thousand seconds old.

• It determines the abundances of the lightest nuclides, which give rise to the subsequent history of the visible matter in the Universe.
• This work derives new $^7$Be(n,p)$^7$Li thermonuclear reaction rates based on all available experimental information.
• This reaction sensitively impacts the primordial abundances of $^{7}$Be and $^7$Li during big bang nucleosynthesis.