Fusion-like processes and the concept of dynamic equivalence: The system 132Xe + natFe

Abstract

Cross sections for production of nuclides in the reaction of 4.56, 5.90 and 7.12 MeV u 132Xe ions with thick natural Fe targets were determined, and the corresponding mass- and charge-yield curves have been constructed. The latter are resolved into components corresponding to fusion-fission (symmetric fragmentation), fusion-evaporation, deep-inelastic transfer and quasielastic transfer. The integral excitation functions for fusion and fusion-like processes exhibit very good agreement with the predictions of the dynamic capture model of Swiatecki. Furthermore, the observed extra push energies for this system and those of 208Pb + 48Ca show very similar dependencies on the corresponding entrance-channel orbital energies, in line with the model prediction that these systems should be dynamically equivalent.