Decay of 56Ni system formed in 16O+40Ca reaction

Hot nuclear systems formed in low energy heavy ion collisions are studied extensively by experiments as well as by theoretical methods. Dynamical cluster-decay model (DCM) based on fragmentation theory by Gupta and collaborators, a non statistical approach, explains the de-excitation of hot and rotating compound systems as the dynamical collective mass motion of preformed fragments, with different preformation probabilities for the light particles (LPs) and intermediate mass fragments (IMFs), tunnelling the barrier, with the structure effect entering through the preformation factor. Binding energies of hot nuclei are major inputs in the model. In the earlier works on DCM the liquid drop part of Davidson et al., were used and which were refitted for two of its constants (for each isotopic chain) so as to give the g.s. experimental binding energies. Among the different temperature dependent binding energy formulae available in the literature the one due to Guet et al., gives a quadratic dependence of the coefficients of binding energy terms on temperature