ThegR-factor of rare-earth nuclei in the Geometric Collective Model
A parameter-free expression for the collective magnetic dipole operator ofee-nuclei is derived within the Geometric Collective Model. Using this result we give an analytical formula for the (gR−Z/A)-value of the lower spin groundstate band members foree-nuclei. The general procedure is explained discussing the results (energies, B(E2)-values and quadrupole moments) for166–170Er-isotopes extensively. The groundstate bandgR-factors of the isotopes166–170Er,153–160Gd,160–164Dy,170–174Yb are calculated and compared with experimental data and results of other models.