Cluster jets as a possible α emission mechanism in intermediate energy heavy ion collisions

Abstract

We propound a model for the α-particle emissions in intermediate energy (10 MeV/nucleon up to 100 MeV/nucleon) heavy ion reactions. It is based on a semi-classical description of the α clustering in nuclei: the α bound states (s-waves) are given by coherent states built in the radial motion. The mean characteristics of the emission processes are therefore given by three-body classical dynamics. Typical trajectories and predictions for the α-energy spectra are shown as examples with the reaction 40Ar(1600 MeV) + 164Dy.