Influence of the neutron numbers of projectile and target on the evaporation residue cross sections in hot fusion reactions

Abstract

Within the framework of a dinuclear system model, the influence of projectile and target neutron number on capture cross section, fusion probability, and survival probability for the reactions $^{34,36}\mathrm{S}+^{238}\mathrm{U}$ and $^{48}\mathrm{Ca}+^{239,240,242,244}\mathrm{Pu}$ are investigated. The calculated excitation functions are in good agreement with the experimental data. To synthesize more unknown neutron-deficient isotopes of already-known superheavy elements, the possibility of using lighter calcium isotopes to induce hot fusion reactions is investigated and the maximal evaporation residual cross sections for $^{44,46,48}\mathrm{Ca}$-induced hot fusion reactions to produce unknown neutron-deficient superheavy nuclei with $Z=112--116$ are predicted.