Renormalisation of g-boson Effects in an s-d-g Boson Model

Abstract

A renormalisation method is developed in which g-boson coupling effects in a transformed Hamiltonian are minimised. The unitary transformation upon which this is based is that proposed by Otsuka and Ginocchio (1985). The conditions under which the g-boson coupling is eliminated are specified under various approximations and resulting spectra are compared with the exact ones obtained from diagonalisation of an exact s-d-g boson Hamiltonian.