Abstract
Excited states have been observed for the first time in the very neutron-deficient nuclide. The ground-state band and a side band have been observed up to spins 20 and 17 ħ, respectively. The bands have been assigned to using gamma-recoil and gamma-x ray coincidences. Excitation-energy systematics suggest that the ground state of is less deformed than that of The side band decays into the ground-state band via three transitions, which are presumed to have character. The occurrence of transitions and negative-parity states in the very neutron-deficient barium isotopes is discussed with respect to the possible onset of octupole correlations.
- Received 5 November 1997
DOI:https://doi.org/10.1103/PhysRevC.57.R1037
©1998 American Physical Society