Yrast and near-yrast excitations up to high spin in [Formula Presented]
Clark RM., Wilson JN., Appelbe D., Carpenter MP., Chiara CJ., Cromaz M., Deleplanque MA., Devlin M., Diamond RM., Fallon P., Fossan DB., Janssens RVF., Jenkins DG., Kelsall N., Koike T., LaFosse DR., Lane GJ., Lee IY., Macchiavelli AO., Sarantites DG., Seweryniak D., Starosta K., Stephens FS., Svensson CE., Vetter K., Wadsworth R., Waddington JC., Ward D., Wiedenhöver I., Alex Brown B.
The gamma decay of excited states in the nucleus [Formula Presented] which is two proton holes and two neutrons away from doubly magic [Formula Presented] has been studied with the Gammasphere array following the [Formula Presented] reaction at 215 MeV. Residues were identified by detection of evaporated charged particles in the Microball CsI array, by neutron detection in a set of liquid scintillator detectors, and by a tag on the delayed gamma-ray decay of the known [Formula Presented] isomeric state. The level scheme has been extended up to [Formula Presented] in angular momentum and to nearly 10 MeV in excitation energy. The results are compared with shell-model calculations. © 2000 The American Physical Society.