  The folding formalism for the nucleon-nucleus optical potential and inelastic
form factor is applied to study elastic and inelastic proton scattering on
30-40S isotopes. A recently developed realistic density dependent M3Y
interaction, well tested in the folding analysis of nucleus-nucleus elastic and
inelastic scattering, is used as effective NN interaction. The nuclear ground
state and transition densities (for the 2+ excitations in Sulfur isotopes) are
obtained in the Hartree-Fock-BCS and QRPA approaches, respectively. The best
fit ratios of transition moments Mn/Mp for the lowest 2+ states in Sulfur
isotopes are compared to those obtained earlier in the DWBA analysis of the
same data using the same structure model and inelastic form factors obtained
with the JLM effective interaction. Our folding+DWBA analysis has shown quite a
strong isovector mixing in the elastic and inelastic scattering channels for
the neutron rich 38,40S nuclei. In particular, the relative strength of the
isovector part of the transition potential required by the inelastic p+38S data
is significantly stronger than that obtained with the corresponding QRPA
transition density.

Nuclear Theory