Abstract

The nucleus 124Cs has been studied by in-beam γ- and e −-spectroscopy techniques with the fusion–evaporation reaction 115In( 12C, 3n γ) at 57 MeV. Multipolarities of the main low-energy transitions have been deduced from electron spectra. A level scheme is proposed with firm I π assignments. Low-spin low-lying levels and high-spin states have been investigated. The low-spin levels and two-quasiparticle bands are interpreted by using the interacting boson–fermion–fermion model. The band structures are also discussed in the frame of the cranked-shell model.

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