Abstract
The Li-7 + Si-28 angular distributions for elastic scattering in the laboratory energy range of 8.5-36 MeV are reanalyzed using different approaches based on both phenomenological and microscopic potentials. Special attention is paid to the alpha + t cluster structure for Li-7, which appears at a threshold energy of 2.468 MeV. The performed analysis using the different implemented potentials showed that the breakup of Li-7 in the field of Si-28 plays a strong effect in forming the cross sections. Such an effect results in a significant reduction in the renormalization factors of the utilized potentials. A satisfactory description of the data is achieved using the different implemented approaches.