Extracting dynamics in the fusion of neutron-rich light nuclei

Abstract

The dependence of fusion dynamics on neutron excess for light nuclei is extracted. This is accomplished by comparing the average fusion cross-section at energies just above the fusion barrier for 12−15 C + 12 C with measurements of the interaction cross-section from high energy collisions. The experimental results indicate that the fusion cross-section associated with dynamics increases with increasing neutron excess. Calculations with a time-dependent Hartree-Fock model fail to decribe the observed trend.