Nuclear Shapes at Very High Angular Momenta

Abstract

The knowledge of nuclear shapes from ground-state up to scission is of interest from the points of views of the not-yet measured quadrupole deformations or B(E2) transitions for very high spin states, the variations of moments of inertia with angular momenta, the limiting angular momentum at scission and for distinguishing between the processes of fission and cluster preformation in nuclei. Some of these questions are answered here in terms of a model that uses the two centre shell model (TCSM) parametrization of the nuclear shape and the measured ground-state (g.s.) yrast band energies and quadrupole deformations of these states. This work is an extension of the one for quasi-molecular resonance states in heavy-ion collisions1.