Elastic and Inelastic Scattering of 9,10,11Be by 64Zn and 120Sn Nuclei at Different Energies

In the context of the double folding optical model, the elastic and inelastic scattering of 9 Be + 120 Sn at E lab ( 9 Be) = 31, 42 and 50 MeV and 9,10,11 Be + 64 Zn 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 9,10,11 Be nuclei. The imaginary potential is taken in the traditional standard Woods–Saxon form. Coupled channel (CC) calculations using a rotational model are performed for 9 Be inelastically scattered from 120 Sn, leading to different 120 Sn 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) 120 Sn 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.