  Relativistic Mean Field calculations have been performed for a number of
nuclei in mass $A\approx$80 region. Ground state binding energy, charge radius
and charge density values have been compared with experiment. Optical potential
have been generated folding the nuclear density with the microscopic nuclear
interaction DDM3Y. S-factors for low energy ($p,\gamma$) and ($p,n$) reactions
have been calculated and compared with experiment.
