Investigation of Sub-Coulomb barrier fusion reaction of α +40Ca in different models

Abstract

In this study, microscopic nucleon–nucleon Double Folding (DF) and phenomenological potentials have been used to investigate [Formula: see text]Ca reaction observables at sub-barrier energies. In the calculations, semi-classical Wentzel–Kramers–Brillouin (WKB) approach has been used in order to obtain the cross-sections and reaction rates of [Formula: see text]Ca. Besides WKB approximation, we have also utilized Talys code in order to get the comparative results and find out the method differences. To estimate the reaction rates, energy-dependent cross-sections and astrophysical S-factors of [Formula: see text]+[Formula: see text]Ca have been used. Herewith, differences between models and potentials have been demonstrated using the reaction rate estimates.