Study of Cold Fusion Reactions Using Collective Clusterization Approach**Supported by the Council of Scientific and Industrial Research (CSIR), in the Form of Research Project Grant No. 03(1341)/15/EMR-II, and to DST, New Delhi, for INSPIRE-Fellowship Grant No. DST/INSPIRE/03/2015/000199

Abstract

Within the framework of the dynamical cluster decay model (DCM), the 1n evaporation cross-sections ( of cold fusion reactions (Pb and Bi targets) are calculated for –113 superheavy nuclei. The calculations are carried out in the fixed range of excitation energy , so that the comparative analysis of reaction dynamics can be worked out. First of all, the fission barriers (Bf) and neutron separation energies () are estimated to account the decreasing cross-sections of cold fusion reactions. In addition to this, the importance of hot optimum orientations of β2i-deformed nuclei over cold one is explored at fixed angular momentum and neck-length parameters. The hot optimum orientations support all the target-projectile (t,p) combinations, which are explored experimentally in the cold fusion reactions. Some new target-projectile combinations are also predicted for future exploration. Further, the 1n cross-sections are addressed for –113 superheavy nuclei at comparable excitation energies which show the decent agrement with experimental data upto nuclei. Finally, to understand the dynamics of higher-Z superheavy nuclei, the cross-sections are also calculated at maximum available energies around the Coulomb barrier and the effect of non-sticking moment of inertia () is also investigated at these energies.