Inelastic scattering of protons from 6,8He and 7,11Li in a folding model approach

Abstract

The proton-inelastic scattering from 6,8He and 7,11Li nuclei is studied in a folding model approach. A finite-range, momentum, density and isospin dependent nucleon–nucleon interaction is folded with realistic density distributions of the above nuclei. The renormalization factors NR and NI on the real and volume imaginary part of the folded potentials are obtained by analysing the respective elastic scattering data and kept unaltered for the inelastic analysis at the same energy. The form factors are generated by taking derivatives of the folded potentials and therefore require renormalizations. The β values are extracted by fitting the p + 6,8He, 7,11Li inelastic scattering angular distributions. The present analysis of p + 8He inelastic scattering to the 3.57 MeV excited state, confirms L = 2 transition. Similar analysis of the p + 6He inelastic scattering angular distribution leading to the 1.8 MeV (L = 2) excited state fails to satisfactorily reproduce the data.