Abstract
Excited states in were populated in the reaction at and the reaction at The resulting gamma decay was detected using the Gammasphere array triggered by a 30-element neutron detector. The cross-bombardment allowed the unambiguous assignment of levels to comprising a total of 32 states built both on the ground state and a previously known isomer, which is located at an excitation energy of 2293 keV by the observation of linking transitions. The structures are discussed within the context of the two-quasiparticle plus rotor model, the IBM-4 model and the cranked Nilsson-Strutinsky formalism. The nonobservation of a doublet of and states at low excitation in is indicative that proton-neutron pairing strength is weak in comparison to pairing.
- Received 18 January 2002
DOI:https://doi.org/10.1103/PhysRevC.65.064307
©2002 American Physical Society