Abstract

Three rotational bands have been established to high spin in doubly odd using high-fold -ray coincidence data collected with the Eurogam II spectrometer. Two of the bands are linked by dipole transitions at low spin and are believed to be signature partners built on the structure. A low-spin signature inversion is observed and taken as evidence for a triaxial shape with , which is supported by TRS cranking calculations. The third band, seen at higher spin/frequency, is tentatively associated with a deformed five-particle - two-hole configuration, whereby two proton holes result from two-particle - two-hole excitations across the Z = 50 shell gap.

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