Decay of neutron-deficient excited heavy nuclei

By studying the evaporation residue cross-sections of heavy nuclei formed by heavy ion induced reactions, it is possible to have information on the fission-evaporation competition along the de-excitation cascade of the compound nucleus leading to neutron deficient residue nuclei. A refined statistical model code is used, which accounts for dissipation effects and angular momentum dependence of the shell correction in the fission dynamics. A comparison between calculations and available experimental data is made for the 224 Th and 252,254 Fm compound nuclei. An evaluation of the 292 114 superheavy nucleus production by the 48 Ca + 244 Pu reaction is obtained