${}^3\mathrm{He}(\alpha ,\gamma {)}^7\mathrm{Be}$ and ${}^3\mathrm{H}(\alpha ,\gamma {)}^7\mathrm{Li}$ reaction rates and the implication for Big Bang nucleosynthesis in the potential model

Abstract

The reaction rates of the direct astrophysical capture processes ${}^3\mathrm{He}(\alpha ,\gamma {)}^7\mathrm{Be}$ and ${}^3\mathrm{H}(\alpha ,\gamma {)}^7\mathrm{Li}$, as well as the abundance of the ${}^7\mathrm{Li}$ element are estimated in the framework of a two-body potential model. The estimated ${}^{7}Li/H$ abundance ratio of ${}^{7}Li/H=(5.07\pm 0.14)\times 10^{-10}$ is in a very good agreement with the recent measurement ${}^{7}Li/H=(5.0\pm 0.3)\times 10^{-10}$ of the LUNA collaboration.

arXiv comment9 pages, 2 figures, 4 tables

References in corpus (14)

• Planck 2015 results. XIII. Cosmological parameters
• Big Bang Nucleosynthesis: 2015
• Solar fusion cross sections II: the pp chain and CNO cycles
• The Primordial Lithium Problem
• NACRE II: an update of the NACRE compilation of charged-particle-induced thermonuclear reaction rates for nuclei with mass number $A<16$
• Primordial Nucleosynthesis for the New Cosmology: Determining Uncertainties and Examining Concordance
• Compilation and R-matrix analysis of Big Bang nuclear reaction rates
• PArthENoPE: Public Algorithm Evaluating the Nucleosynthesis of Primordial Elements
• Primordial nucleosynthesis
• Isospin-forbidden electric-dipole capture and the $\alpha (d,\gamma {)}^6$Li reaction
• Theoretical study of the $\alpha +d$ $\to$ ${}^6$Li + $\gamma$ astrophysical capture process in a three-body model
• Constraining Big Bang lithium production with recent solar neutrino data
• Theoretical study of the direct $\alpha +d$ $\to$ ${}^6$Li + $\gamma$ astrophysical capture process in a three-body model II. Reaction rates and primordial abundance
• Astrophysical ${}^3\mathrm{He}(\alpha ,\gamma {)}^7\mathrm{Be}$ and ${}^3\mathrm{H}(\alpha ,\gamma {)}^7\mathrm{Li}$ direct capture reactions in a potential model approach

Cited by in corpus (1)

• Analysis of the ${}^3\mathrm{He}(\alpha ,\gamma {)}^7\mathrm{Be}$ and ${}^3\mathrm{H}(\alpha ,\gamma {)}^7\mathrm{Li}$ astrophysical direct capture reactions in a modified potential-model approach