Abstract
Partial decay schemes in the neutron-rich nuclei and have been measured for the first time and rotational bands in have been extended to spins of up to 10ħ by observing prompt γ rays from the spontaneous fisson of . These nuclei are among the most deformed known at low spin and excitation energy. The level structures in the odd-A nuclei show that the intruder orbital plays an important role in stabilizing the deformation in this region.
- Received 5 February 1990
DOI:https://doi.org/10.1103/PhysRevLett.64.3123
©1990 American Physical Society