Energy dependence of optical-model parameters for the interaction of [sup.6]Li and [sup.7]Li ions with [sup.28]Si nuclei at low energies

The results of a joint analysis of experimental data (angular distributions for scattering and total reaction cross sections) are presented for the case of the interaction of [sup.6,7]Li ions with [sup.28]Si nuclei at energies between 7.5 and 32 MeV. The respective calculations were performed on the basis of a deformed potential of the optical model by using the SPI--GENOA code. The energy dependences of the parameters of the macroscopic optical model and the total cross section for the ([sup.6,7]Li + [sup.28]Si) reactions were obtained over the energy interval from 7.5 to 32 MeV. The calculated angular distributions and total reaction cross sections are in good agreement with experimental data.