Physical features associated with various phenomenological nuclear potential

We make a detailed analysis of different features of the various phenomenological nuclear potential those are quite successful in explaining the elastic scattering experimental data. These features include the behavior of the real effective potential around grazing partial wave (l_g), angular momentum (l) dependence of classical deflection function, reflection function |S₁| and the term |1-S₁|² governing the total partial wave elastic cross section. We also calculate barrier region resonance positions generated by the partial waves around grazing partial wave. We find that the orbiting phenomenon generated by the flatter, surface transparent effective potential and the resulting coherent behavior of only a small number of partial waves in the surface region, resulting in the interference of absorptive region and Coulombic region amplitudes, are primarily responsible for back angle oscillations. (author)