Comparison of the experimental and theoretical ground-state spins of odd-odd nuclei in the region $220\le A\le 228$ generally shows agreement with a folded Yukawa octupole deformed model with ${\epsilon }_3=0.08\mathrm{}$ and some lack of agreement with the same model with ${\epsilon }_3=0\mathrm{}$. Thus, in spite of limited spectroscopic information, the ground-state spins suggest the existence of octupole deformation in odd-odd nuclei in the region $220\le A\le 228$.

• Received 12 August 1987

DOI:https://doi.org/10.1103/PhysRevC.37.423