MODELING THE ELECTROMAGNETIC TRANSITIONS IN TETRAHEDRAL-SYMMETRIC NUCLEI

Abstract

Collective excitations involving a hypothetical nuclear tetrahedral symmetry, the latter described with the help of the T d point group are discussed. A model combining the zero- and one-phonon excitations with the solutions of the "generalised collective rotor" of Ref.1 is constructed. The solutions belonging to the irreducible representations of the T d-group are constructed and used to calculate transition probabilities from hypothetical tetrahedral bands to the ground-state bands. An example of 156 Dy is discussed.