SHAPES OF ODD-ODD PR NUCLEI

Recent experimental data on positive-parity yrast states, based on pi h(11/2)x nu h(11/2) configuration, of odd-odd Pr-132,Pr-134,Pr-136,Pr- 138 nuclei have been analyzed in a systematic way with the energies an d transition probabilities calculated within the framework of two quas iparticles coupled to an axially symmetric core model. It is found tha t very good agreement is obtained in Pr-132 assuming a prolate de-form ation. For Pr-134,Pr-136 also our calculation favors a prolate shape u p to a quite high spin. Theoretical electromagnetic transition propert ies for both positive and negative deformation have been predicted for Pr-138.