Partition of excitation energy in peripheral heavy-ion reactions

Abstract

The partition of excitation energy between target-like and projectile-like primary fragments from 11 MeV/nucleon 20 Ne + 197 Au quasi-elastic reactions was determined from kinematic analyses of three-body final states. Projectile breakup following stripping, pickup, and inelastic scattering was studied, and the excitation-energy partition was found to be strongly correlated with the direction of the mass transfer. Results are in quantitative agreement with optimum- Q-value calculations.