The neutron rich nuclei 61,63 Co have been studied using the reactions 16 O( 48 Ca,p2n) 61 Co and 18 O( 48 Ca,p2n) 63 Co at a bombarding energy of 110 MeV. Discrete ␥ rays from the channels of interest were investigated using prescaled ␥ singles, charged-particle-␥, neutron-charged-particle-␥, and chargedparticle-␥ -␥ coincidence techniques. Decay schemes, with level spins deduced from two-point angular distribution data, are presented together with some approximate information on apparent state lifetimes. The experimental results are compared with previous light ion data for these systems and with theoretical shell model predictions. These data represent the first study of medium to high spin states in these nuclei.

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Two rotational band structures have been identified in doubly odd " Pr following the " Cd( Si,ap3n)' Pr reaction. One band, having no signature splitting, is believed to be built on the near-prolate eh I&/2vg7/2 configuration. A second band, with a small signature splitting, is built on the triaxial mh&, /, vhl&/2 configuration. Systematics of recent results for the doubly odd "'" '" Pr isotopes are presented.