Excitation functions of residues in the interaction of 12C with 103Rh up to an incident energy of 400 MeV

Excitation functions of heavy residues produced in theN14+Rh103reaction up to 400 MeV: Analysis of the pre-equilibrium mechanism with the hybrid Monte Carlo simulation model

“…In recent years, a significant body of experimental data on excitation functions, forward recoil ranges and angular distributions of residues has been accumulated at incident energies up to 400 MeV [2,3,[6][7][8] in the mass region similar to the present work. This allowed a comprehensive analysis of all the processes which take place, both in the initial projectile-target interaction and during the de-excitation of the nonequilibrated hot nuclei which are produced in the interaction.…”

“…In the case of cumulative cross sections for the formation of the observed residues, the fractional contributions from precursor decay were summed to the directly produced contribution. These fractional precursor contributions were obtained by adopting the procedure given in the literature [1,2].…”

“…These processes include the formation of an excited intermediate nucleus in a state far from statistical equilibrium, its equilibration by means of intra-nuclear interactions, pre-equilibrium emission of nucleons and light clusters and finally the formation of an intermediate equilibrated nucleus, which further evaporates particles and also emits γ-rays and/or fissions [1][2][3][4]. There is a statistical competition between these different reaction mechanisms, which all contribute to the cross sections for the formation of specific heavy residues.…”

“…Gadioli et al [1][2][3] presented excitation function data as well as energy spectra and angular distributions of α-particles and intermediate mass fragments (IMFs) for 12 C+ 103 Rh and 16 O+ 103 Rh systems, from the Coulomb barrier up to 400 MeV. In order to understand these data, complete fusion and break-up-fusion processes were assumed to depend on the mean-field interaction between the target and projectile nuclei.…”

“…The experiment presented here was designed to establish the extent to which pre-equilibrium emission of α-particles is present in heavy-ion reactions leading to the heavy fusion-like/target-like residues. The use of 14 N projectiles enhances the data set for comparisons as data for 12 C and 16 O-induced reactions have already been measured on this nucleus [1][2][3]. It provides a valuable testing ground for the HMS model.…”