Energy Division in Damped Reactions

Abstract

Nuclear charges and kinetic energies were measured for fragments resulting from reactions of $^{58}\mathrm{Ni}$ + $^{58}\mathrm{Ni}$ and $^{58}\mathrm{Ni}$ + $^{197}\mathrm{Au}$ at 15.3-MeV/u incident energy. These data suggest a nonequilibrium division of the available excitation energy between target and projectile for a large range of energy losses. This interpretation is supported by a consistent analysis of more complete data available for the $^{56}\mathrm{Fe}$ + $^{165}\mathrm{Ho}$ reaction at 8.5-MeV/u incident energy.