A semiquantal evaluation ofd 2 ?/d? dE in DIC dynamically based on classical transport equations

Abstract

The quantal double differential cross-section averaged over micro channels is parametrized in a way that accounts for the transfer of radial momentum and orbital angular momentum of relative motion of two colliding heavy ions into intrinsic degrees of freedom. The formfactors introduced are related to the solutions of classical Fokker-Planck equations and to semiclassical approximations of the phase shifts. An application of the model to40Ar→232Th atE lab=388 MeV which is based on familiar classical friction models and contains no further parameters yields a cross sectiond 2 σ/dθ dE in good overall agreement with the experimental data.