Abstract
The fusion evaporation residue cross sections for the decay of the compound nuclear system via - to -decay channels, synthesized in , are studied using the dynamical cluster-decay model (DCM), including quadrupole deformations for compact hot orientations at various excitation energies to 52.6 MeV. For the nucleus-nucleus interaction potentials, we have employed the Skyrme energy density functional based on the semiclassical extended Thomas-Fermi approach under frozen density approximation. Here, within the DCM, the Skyrme forces used are SLy4, , and, KDE0(v1). The DCM makes use of a single parameter, the neck-length parameter that takes different values for different processes at a given temperature and provides an excellent fit to the measured data, independently of the choice of Skyrme force used. We make predictions of probable fusion-fission and quasifission mass regions of fragments and then calculate the evaporation residue cross sections for experimentally unobserved neutron channels. Further, the product of compound nucleus (CN) fusion probability and survival probability is calculated to determine the reduced evaporation residue cross section , denoted as , and we have seen that is the main dominant factor in the product . To this end, we have analyzed the effects of mass asymmetry and isospin effect of target nucleus on the and have found that the for the production of superheavy element increases slowly with increasing neutron number of the target nucleus. We have also searched for all possible target-projectile combinations forming the hot compound nucleus at the excitation energy for compact-hot configurations and have also calculated the fusion evaporation residue cross sections for the proposed new reactions synthesizing Fl.
5 More- Received 6 December 2022
- Accepted 23 December 2022
DOI:https://doi.org/10.1103/PhysRevC.107.014610
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