Octupole states in Cm246 and Cm248 populated by inelastic deuteron scattering

Vibrational states in Cm246 and Cm248 have been investigated by inelastic deuteron scattering. The Kπ=0-, 1-, and 2- octupole states are identified in Cm246 at 1251, 1080, and 842 keV, respectively. In Cm248 several excited states above 1 MeV have been identified; however, definite assignments for these states, except a Jπ=3- state at 1095 keV and a Jπ=2+ state at 1050 keV, could not be made. Differences between the Cm246 and Cm248 level spectra are interpreted in terms of their microscopic components. Reduced transition probabilities B(E3) are extracted for the observed Jπ=3- levels and are compared with theoretical values available in the literature. NUCLEAR REACTIONS Cm246,248(d, d′),, Ed=15 MeV; measured σ(Ed′, θ). Cm246,248 deduced levels, J, K, π, B(E3). Enriched targets.