Cluster radioactivity in very heavy nuclei: a new perspective

TL;DR

This paper investigates exotic cluster decay in very heavy nuclei using microscopic nuclear potentials derived from folding density dependent M3Y interactions, calculating half-lives and preformation factors within a quantum tunneling framework.

Contribution

It introduces a microscopic approach to model cluster radioactivity in heavy nuclei, emphasizing the weak dependence of preformation factors on cluster mass.

Findings

Half-life values are successfully calculated using the WKB approximation.

Preformation factors show minimal variation with different emitted cluster masses.

The approach provides new insights into the decay mechanisms of heavy nuclei.

Abstract

Exotic cluster decay of very heavy nuclei is studied using the microscopic nuclear potentials obtained by folding density dependent M3Y effective interaction with the densities of the cluster and the daughter nuclei. The microscopic nuclear potential, Coulomb interaction and the centrifugal barrier arising out of spin-parity conservation are used to obtain the potential between the cluster and the daughter nuclei. Half life values are calculated in the WKB framework and the preformation factors are extracted. The latter values are seen to have only a very weak dependence on the mass of the emitted cluster.