Level spectra, electromagnetic moments and transition rates and spectroscopic factors for odd rhodium isotopes in the coriolis coupling model

Abstract

Properties of low-lying positive- and negative-parity states of 97,99,101,103,105,107,109Rh at low excitation energies have been analyzed in terms of a Coriolis coupling model. The model can account for the general trend of the level schemes for states of both parties. In particular, the 9 2 , 7 2 , and 5 2 triplet near the ground state, the occurrence of multiple 13 2 and at least one 15 2 and 19 2 state of positive parity are reasonably reproduced by the model. Similarly, 1 2 ground-state spin followed by a ( 3 2 , 5 2 ) doublet, and one or more 13 2 and 17 2 states of negative parity are adequately understood in terms of the model. The calculated electromagnetic dipole and quadrupole moments and magnetic dipole and electric quadrupole transition rates are in broad agreement with the observed ones. This is achieved without the use of any effective charge. The general trend of observed spectroscopic factors for pick-up reactions is in agreement with the calculated ones. The results are presented as a function of deformation. Because of the sparsity of data on many of these isotopes, no attempt has been made to find the best fit for each isotope individually. Since the model can reasonably reproduce the general trend of level schemes, electromagnetic properties and spectroscopic factors, one may conclude that the Coriolis coupling model provides a good description of the nuclear properties of these isotopes.