THE MEASUREMENT OF THE EVAPORATION RESIDUES EXCITATION FUNCTIONS IN THE FUSION REACTIONS ~(144)Sm (~(40)Ar,xn) AND ~(166)Er(~(40)Ar,xn)

摘要

The evaporation residues excitation functions for the reactions ~(40)Ar+~(144)Sm→~(184)Hg and ~(40)Ar+~(166)Er→~(206)Rn were measured at the energies below and above the Coulomb barrier (E_(lab)=142-207 MeV) using a mass-separator MASHA. The experimental data were compared with theoretical calculations using a Channel Coupling Model. The influence of experimental beam energy spread on the excitation functions was taking into account. It was found that structure of xn-cross sections correlate strongly with the nuclear structure of colliding nuclei.