Role of Deformations in Cluster Radioactivity using Modified Preformed Cluster Model

Abstract

The cluster decay of deformed parents is studied using the Preformed Cluster Decay Model (PCM) having deformation and orientation effects included in it. The main strength of the model is that it treats the binary fragmentation on equal footing along with very important information regarding structural features of fragmentation process. This facility is not available in other fission and statistical models. The role of deformations and orientations seems to be extremely essential besides shell structure and Q-value consideration in this rare decay process, giving fragments in between α-particles and fission fragments. It is of great interest to see that in what way the inclusion of deformations and orientations effects of the decaying fragments influence the potential energy surface PES behavior. Because of the apparent variation in the PES of the fragmentation process, the preformation probability P0 and tunneling penetrability gets modified which influences the decay constant and half life times of clusters accordingly. It may be noted that the scattering potential barrier (position as well as height) gets modified with deformation and orientation effects of outgoing fragments thereby effecting tunneling path and hence the penetrability P. The work carried out in this thesis seems highly relevant in context of present day developments in low energy nuclear structure physics and could provide handful information for the future experiments in the related area.