Abstract
In-beamγ-ray and conversion electron measurements with (α, xn) reactions have established the145Sm highspin states up toIπ=25/2+ at 3.5 MeV excitation. A shell model analysis using empirical two- and one-body energies from neighbouring nuclei classifies the low-lying odd-parity levels as 3-quasiparticle states formed by the144Sm two-proton-hole excitations and thef7/2 valence neutron. The higher-lying positive-parity states involve particle-hole core excitations with one proton inh11/2.
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