Low-energy proton capture reactions in the mass region 55-60

TL;DR

This paper investigates low-energy proton capture reactions in the mass 55-60 range using a microscopic optical model with relativistic mean field densities and DDM3Y interaction, providing reaction rates for astrophysics.

Contribution

It introduces a set of normalization parameters for proton-nucleus optical potentials in the 55-60 mass region based on experimental data, enhancing reaction rate predictions.

Findings

Normalized optical potential parameters fitted to experimental data

Calculated proton capture rates for astrophysical applications

Validated model with available experimental data

Abstract

Low energy proton capture reactions in the mass 55-60 region are studied in a microscopic optical model. Nuclear density profile is calculated using the relativistic mean field theory. The DDM3Y interaction is folded with the theoretical density to obtain the proton-nucleus optical potential. A definite set of normalization parameters has been obtained for the concerned mass region by comparing with all available experimental data in this mass region. These parameters have been used to obtain proton capture rates for astrophysically important reactions in this mass region.