alpha radioactivity of superheavy nuclei

Abstract

Calculations based on the relativistic mean field framework have been carried out for the ground state properties of the relevant nuclei appearing in the alpha-emission chain of superheavy element Z=112. The calculations compare well with the experiment. The calculated densities along with the energy and the density dependent M3Y effective nucleon-nucleon interaction are used in the double folding model to compute the respective total interaction energies. These, in turn are used to calculate the half-lives of the parent nuclei against the split into an alpha and the daughter in the WKB approximation. The calculations are repeated for the nuclei appearing in the 4n+2 alpha chain for a comparative study. The sensitivity of the calculated half-live's on the input information, especially the Q values are quantitatively investigated.