Effect of octupole deformation and associated orientation on fusion dynamics of 16O+144Ba, 224Rn, 224Ra, 224Th, and 224U reactions

Abstract

The effect of octupole deformations and orientations is studied on the interaction potential and the fusion cross-sections of 16O- based reactions. In this work the octupole deformed target are considered i.e. 144Ba, 224Rn, 224Ra, 224Th, and 224U. The fusion cross-sections are calculated using Wong formula. The effect of positive and negative octupole deformations is also investigated on the interaction potential. The possible change in optimum hot orientation is also studied with the inclusion of 3- deformations This thesis is comprised of three Chapters. The brief description of these chapter are given as follows: Chapter 1 gives the introduction regarding the nuclear reaction and the importance of nucleus-nucleus interaction potential, with the inclusion of deformation parameters and orientations. Beside this, the fusion probability of deformed nuclei (upto octupole) has been discussed. Chapter 2 gives the details of the methodology which is used to describe the total interaction potential with the inclusion of deformations and orientations. The penetration probability is calculated using Hill Wheeler approximation. The detail of Wong formula and it’s approximation for calculating the fusion cross-sections. Chapter 3 discusses about the calculations and results obtained because of the interaction between the spherical choice of projectile and octupole deformed target. Afterwards, fusion cross-sections are calculated using Wong formula for 16O (sph.) + 144Ba, 224Rn, 224Ra, 224Th, and 224U nuclear systems and conclusions are shown.