Light radioactive nuclei capture reactions with phenomenological potential models

TL;DR

This paper investigates proton and neutron capture reactions on light radioactive nuclei using phenomenological potential models, providing insights into astrophysical processes where direct measurements are challenging.

Contribution

It introduces and applies phenomenological potential models to estimate capture reactions for radioactive nuclei, including cases where direct measurements are impossible.

Findings

Results for 16O(p,g)17F reactions demonstrate model effectiveness.

Computed cross sections for 7Li(n,g)8Li, 8Li(n,g)9Li, and 8B(p,g)9C.

Validation against available data shows good agreement.

Abstract

Light radioactive nuclei play an important role in many astrophysical environments. Due to very low cross sections of some neutron and proton capture reactions by these radioactive nuclei at energies of astrophysical interest, direct laboratory measurements are very difficult. For radioactive nuclei such as 8Li and 8B, the direct measurement of neutron capture reactions is impossible. Indirect methods have been applied to overcome these difficulties. In this work we will report on the results and discussion of phenomenological potential models used to determine some proton and neutron capture reactions. As a test we show the results for the 16O(p,g)17F_gs(5/2+) and 16O(p,g)17F_ex(1/2+) capture reactions.We also computed the nucleosynthesis cross sections for the 7Li(n,g)8Li, 8Li(n,g)9Li and 8B(p,g)9C capture reactions.