Abstract
High-spin states have been studied in the neutron-deficient odd- and isotopes, produced in (,) and (,) reactions, using the Euroball and Eurogam -ray spectrometers, respectively. A quadruples analysis () of the coincident -ray data has established new band structures in and extended the known bands to higher spin. In addition, links have been established between two positive-parity bands in allowing a reassignment of to the ground state of this nucleus. Configuration assignments are made by comparison of band properties with cranked Woods-Saxon calculations and systematics of other light odd- cerium isotopes. Unusually large signature splitting in the negative-parity bands is discussed in terms of nonaxial nuclear shapes induced by the core-polarization effects of neutrons.
2 More- Received 21 August 2009
DOI:https://doi.org/10.1103/PhysRevC.80.054312
©2009 American Physical Society