Role of temperature-dependent binding energies in 20O+12C reaction dynamics

Abstract

We investigate the low energy 20O+12C reaction at Ec.m. = 9.29 MeV populating the 32Si* nuclear system within dynamical cluster-decay model (DCM) and bring about the role of temperature (T) dependent binding energies in the reaction dynamics. T-dependent binding energies are one of the crucial ingredients of DCM used to calculate the fragmentation potential and hence the fusion cross-section. The inculcation of T-dependent binding energies from microscopic relativistic mean field (RMF) theory in comparison to that from Davidson formula, leads to considerable change in the fragmentation profile, preformation probability of different fragments. Subsequently, it affects the contribution of individual channel in the fusion cross-section associated with light charged particles (LCP) emission. It is noted that the statistical evapOR model under predicts the LCP cross-section σLCP. On the other hand, DCM calculated σLCP is in nice agreement with experimental data for both cases of T-dependent binding energies although contribution of 3H and 4He channels in σLCP changes significantly for both cases.