Abstract

The exotic cluster radioactive decay of nuclei with Z = 52-62 are studied using the unified fission model. The half lifetime values are evaluated and then compared with the values obtained by Poenaru et al. who used the analytical super asymmetric fission model. The half-lives obtained for the considered decays lie very close to those by Poenaru et al. The linear nature of Geiger – Nuttal plots observed in the present study show that the effect of proximity potential is mild. The rate of radioactive decay is inversely proportional to neutron excess in the present nucleus is also reported. It is concluded that the presence of neutron excess in the parent nuclei slows down the exotic decay process.