Description of the ¹¹B+²⁰⁹Bi elastic scattering: applying different nucleon-nucleon interactions

Abstract We analyzed the elastic scattering angular distributions of 11 B from 209 Bi over the energy range of 49.8–84.1 MeV using different potentials. We used the cluster folding (CF) method to calculate the real part of the nuclear optical potential (OP). The 7 Li+ α cluster structure of the tightly bound 11 B projectile is considered in this method. In addition, we employed the conventional double folding (DF) method using both energy-dependent (SPP2, S1Y, and R3Y) and energy-independent (BNP and KH) effective nucleon-nucleon (NN) interactions. We use either the Woods-Saxon (WS) form or an FM approach that matches the real potential for the imaginary part. For comparison, the phenomenological Woods-Saxon (WS) potential is used. We found that all the considered potentials accurately describe the differential cross sections. Furthermore, these potential parameters have similar energy behavior. These potentials are divided into two groups based on their energy dependence and their corresponding physical quantities.