Magnetic properties of the νj_(15/2) intruder orbital in the superdeformed minimum of ~(197)Pd

摘要

This work has established eight cross-talk transitions between the two signature partner superdeformed (SD) bands in ~(197)Pb with the EUROBALL IV spectrometer. Directional correlations from oriented states measurements confirm the ΔI = 1 character of these transitions. The flat behaviour of the dynamical moment of inertia and the agreement between the experimental and microscopic HF + BCS values of (gK - gR) K/Q_0 suggest that the configuration of the SD bands is based upon the ν[752]5/2~- neutron intruder orbital. The derived effective spin gyromagnetic factor g_s~(eff) is found to be not quenched, and is close to the theoretical g_s~(free) value.