Recent experimental data on positive-parity yrast states, based on π${\mathit{h}}_{11/2}$⊗ν${\mathit{h}}_{11/2}$ configuration, of odd-odd ${}_{}{}^{132,134,136,138}{}_{}{}^{}\mathrm{Pr}$ nuclei have been analyzed in a systematic way with the energies and transition probabilities calculated within the framework of two quasiparticles coupled to an axially symmetric core model. It is found that very good agreement is obtained in ${}_{}{}^{132}{}_{}{}^{}\mathrm{Pr}$ assuming a prolate deformation. For ${}_{}{}^{134,136}{}_{}{}^{}\mathrm{Pr}$ also our calculation favors a prolate shape up to a quite high spin. Theoretical electromagnetic transition properties for both positive and negative deformation have been predicted for ${}_{}{}^{138}{}_{}{}^{}\mathrm{Pr}$. © 1996 The American Physical Society.

• Received 25 March 1996

DOI:https://doi.org/10.1103/PhysRevC.54.1221