Abstract
Excited states in have been identified up to spins of using the extremely weak evaporation channel ( of ) from the bombardment of a backed target with 243 MeV ions. Channel selection and enhancement was made possible using the power of the GAMMASPHERE array to measure high-fold γ-ray coincidences and the resultant application of multiple γ-ray gating techniques. The observation in of two interleaved sequences of levels with assumed opposite parity connected by enhanced transitions is interpreted in terms of octupole correlations. The current results for make it the closest nucleus to the predicted region of octupole deformation centered at yet studied to high spin.
- Received 4 September 1997
DOI:https://doi.org/10.1103/PhysRevC.57.R1022
©1998 American Physical Society