Effect of nuclear incompressibility on the fine structure of odd–odd superheavy nuclei

Abstract

In this research, the alpha decay fine structure for odd–odd nuclei has been investigated considering the effects of incompressibility of nuclear matter density in the range of [Formula: see text]. In our calculations, transitions from the parent nuclei’s ground state to the daughter nuclei’s excited states have been considered. In these calculations, the double-folding model with effective finite-range nucleon–nucleon interactions was used in the framework of BDM3Y1, CDM3Y2, CDM3Y4, CDM3Y6 and BDM3Y1 configurations to calculate alpha-daughter nucleus interaction. These different versions of nucleon–nucleon interaction apply values of 176[Formula: see text]MeV to 270[Formula: see text]MeV for the incompressibility term of nuclear matter in calculations. WKB approximation along with the Cluster formation model has been used to calculate partial half-lives and branching ratio. The results of these calculations regarding partial half-lives in the framework of CDM3Y6 ([Formula: see text][Formula: see text]MeV) interactions indicate a better agreement with the corresponding experimental data than density-dependent interactions. It has also shown that by decreasing the values of incompressibility, the partial half-lives increase compared to the experimental data.