Abstract
The high-spin level structures of the nuclei ,97Ru have been studied via the Li,p2nRu and Li,3nRu reactions, using γ-γ coincidence, γ-W(θ), and pulsed-beam-γ measurements. Shell-model calculations of energy levels and B(E2) values for have been performed and compared with the experimentally observed levels and the measured and lifetimes. A collective ΔJ=2 band has been identified with the 1 neutron state in , and discussed in the context of the general nature of collectivity in nuclei outside the N=50 closed shell. No ΔJ=1 band associated with the 1 neutron-hole intruder state was found in either of the N=51,53 Ru nuclei, as observed previously for the 1 proton-hole intruder states in the Z=51 Sb and Z=53 I nuclei.
- Received 1 July 1985
DOI:https://doi.org/10.1103/PhysRevC.32.1238
©1985 American Physical Society