Abstract
In the context of the double folding optical model, the elastic and inelastic scattering of Be-9 + Sn-120 at E-lab (Be-9) = 31, 42 and 50 MeV and Be-9,Be-10,Be-11 + Zn-64 elastic scattering at E-c.m. = 24.5 MeV are investigated. Real folded potentials are generated using the DDM3Y interaction based on the suggested density distributions for the Be-9,Be-10,Be-11 nuclei. The imaginary potential is taken in the traditional standard Woods-Saxon form. Coupled channel (CC) calculations using a rotational model are performed for Be-9 inelastically scattered from Sn-120, leading to different Sn-120 excited states. Successful reproduction of the observed angular distributions of the elastic and inelastic scattering differential cross-sections has been achieved using the derived potentials. Special attention is paid to the previously suggested (3(1)(-), E-x = 2.40 MeV) Sn-120 excited state in order to present the contributions come from - 3(1)(-) at 2.40030(5) MeV, 2(3)(+) at 2.42090(3) MeV, 2(2)(+) at 2.355383(24) MeV, and 4(1)(+) at 2.465632(23) MeV-in forming the inelastic data observed at E-x = 2.41 MeV.