A simple effective interaction for peripheral heavy-ion collisions at intermediate energies

Abstract

A very simple phenomenological nucleon-nucleon effective interaction is derived by folding-model analyses of 36 sets of heavy-ion elastic-scattering data at energies E/A between 10 and 100 MeV. It is represented by a single Yukawa term with a complex strength that varies slowly with energy. It is appropriate for peripheral collisions at intermediate energies. It is proposed for use in consistent analyses of elastic- and inelastic-scattering measurements. The possible role of spin-orbit coupling in heavy-ion elastic scattering at the higher energies is discussed.