Role of neutron magicity in the cluster radioactivity

Exotic decay or cluster radioactivity was first predicted by Sandulescu et al., in 1980 and such decays was first observed experimentally by Rose and Jones in 1984 in the radioactive decay of 223Ra by the emission of 14C with a half life of 3.7 ± 1.1 years. Later on, several clusters were observed experimentally from various parents in the trans-lead region with partial half lives from 1011 up to 1030 s. In the present paper we have investigated the cluster decay process 15N from 206-230Ac, 23F from 212-238Pa, 25Ne from 217-240U and 29Mg from 217-239U. We have considered all the parent-cluster combinations, where the experimental results were available. Calculations are done with the Coulomb and proximity potential model (CPPM)