Decay of Very Hot Nuclei

Abstract

The decay channels of $^{238}\mathrm{U}*$ excited to energies between 10 and 1800 MeV are sampled by a microcanonical Monte Carlo calculation; i.e., the total energy, momentum, baryon number, and charge are strictly conserved quantities. From samples of about 2 \ifmmode\times\else\texttimes\fi{} ${10}^{6}$ complete events, various averages are calculated, such as the number ${N}_{c}$ of charged fragments, the number of prompt and of evaporated neutrons, the temperrature, and the multiplicity of heavy fragments. The distributions of the multiplicity ${N}_{c}$ and of the temperature $T$ are calculated as well.