Theoretical study on fusion dynamics and evaporation residue cross sections for superheavy elements

Abstract

The nuclear dynamical deformation, the fusion probability and the evaporation residue (ER) cross sections for the synthesis of superheavy nuclei are studied with the di-nuclear system model and the related dynamical potential energy surface. The intrinsic energy and the maximum dynamical deformations for Ca-48+Cm-248 are calculated. The effect of dynamical deformation on the potential energy surface and fusion is investigated. It is found that the dynamical deformation influences the potential energy surface and fusion probability significantly. The dependence of the fusion probability on the angular momentum is investigated. The ER cross sections for some superheavy nuclei in Ca-48 induced reactions are calculated and it is found that the theoretical results ate in good agreement with the experimental results.