The $\Delta I=1\mathrm{}$ staggering in odd superdeformed nuclei in the $A\sim 190$ region is systematically investigated. Most of the signature partners in this region show large-amplitude staggerings. The behavior is analyzed and parametrized in the conventional collective model. The spins of the signature partner pairs are assigned in a modified $\mathrm{ab}$ expression.

• Received 30 January 1997

DOI:https://doi.org/10.1103/PhysRevC.56.1814