Abstract
De-excitation modes of compound systems 118Ba and 134Ba' produced respectively in the 78Kr+40Ca and 86Kr+48Ca collisions at 10 A.MeV' are investigated. In particular' the competition between the various disintegration decay paths of medium mass compound nuclei' formed by fusion processes and the isospin (related to N/Z) of the entrance channel influence on the decay process' are studied. Data were taken at the INFN-Laboratori Nazionali del Sud (LNS) in ISODEC experiment' by using the CHIMERA array. The experiment complements and improves the previous experiment performed at GANIL where the same mechanisms were studied at lower excitation energies. The results show the presence of a relaxed component in the reaction mechanism' evident staggering effects in the Z distributions' as well as different isotopic composition and neutron enrichment for the reaction products in the two systems.
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