Abstract

Abstract Based on the well-known concept of the rotor-plus-particle coupling an intrinsic representation of the radiative multipole operators is derived which enables one to calculate directly electromagnetic transition amplitudes with cranking states. In this way both the orientation of the intrinsic system in space and the structure of the quasiparticles can be properly taken into account. This method is then applied to M1 and E2 properties of a high-j one-quasiparticle orbital treated in cranking approximation and it is compared to the results of an equivalent rotor-plus-particle model. In considering a particular case of a three-quasiparticle configuration one can establish the semiclassical vector coupling scheme which has been successful in describing M1 enhancement effects as observed in several experiments.

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