Fusion Between Heavy Neutron-rich Nuclei Using Radioactive and Stable Ion Beams

Abstract

Evaporation residues (ER) and fission product were measured following bombardments of ⁶⁴Ni with radioactive Sn and Te neutron rich isotopes. The experimental setup was tailored to measurements with low intensity radioactive beams and the data obtained show the obvious enhancement of ER production (survival) with the addition of neutrons to the fused system. A calculation of nucleus-nucleus capture within a WKB formalism incorporating neutron transfer in a two step approach was performed. Using global potentials in our calculations we attempted to predict trends as well as account for measured capture cross sections in collisions between heavy nuclei with large neutron excess.