Abstract
One-body density matrix based on shell model is introduced into single folding model to replace that given by a local approximation, expecting to have better description of single particle states. The eect of this local approximation on the folding potential is discussed. By using the folding potential as the real part and combining with a phenomenological imaginary part, a semi-microscopic proton optical potential is constructed with signicant decrease of the number of potential parameters. This potential is applied to the analysis of proton elastic scattering data for the mass range of A = 28 { 90 at incident energies up to 200 MeV. The results show good agreement with available experimental data and are consistent with those of JLM model and Koning-Delaroche potential.
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