Radial sensitivity of the optical model potentials for 4He+120Sn and 6He+120Sn

Abstract

In this paper, the radial sensitivity of the elastic scattering cross-section for the 4He and 6He on [Formula: see text]Sn have been examined at energies near the Coulomb barrier. We also investigate the variation of the potential radius depending on the incident energy for the [Formula: see text]Sn and [Formula: see text]Sn systems. Especially, we have taken care of to stay within one family for [Formula: see text]Sn elastic scattering, i.e., using [Formula: see text] real depth have not been changed by more than 20–30%.