Modified interaction radius and touching spheres schemes for the determination of impact parameter in Coulomb excitation experiments

Abstract

The parametrization schemes based on interaction radius and touching spheres (ts) commonly used for the determination of minimum value of impact parameter [Formula: see text] in the above barrier Coulomb excitation experiments are modified by incorporating an energy-dependent term. The modification leads to about 13% improvement in the value of [Formula: see text] for a variety of projectile target combinations at above Coulomb barrier incident energies.