Using the Dispersion Optical Model for Analysis of Proton Scattering by Nuclei Zr92,94,96 in Energy Range Close to Coulombic barrier

In the frame of dispersion optical model, the variational approximation of moments, we have linearly extrapolated the range of parameters validity of optical potential for energies range close to coulombic barrier. It was established that the study of geometrical parameters of the imaginary surfaces potential leads to good explication to the whole experimental data; namely: total and differential cross-sections and polarization related to these nuclei. (author)