Global phenomenological optical model potential for the 7Li projectile nucleus

A new global phenomenological optical model potential for the Li-7 projectile is derived from the available experimental data of elastic-scattering angular distributions and reaction cross sections from Al-27 to Pb-208 with incident energies below 200 MeV. It is based on a smooth, unique functional form for the energy dependence of the potential depths, and physically constrained geometry parameters. The elastic-scattering angular distributions and reaction cross sections for other targets are also predicted by the obtained Li-7 global phenomenological optical model potential at different incident energies. These results are further compared with the corresponding experimental data. The performance shows that the Li-7 global phenomenological optical model potential can give a satisfactory description for Li-7 elastic scattering.