Diabatic Mean-Field Description of Rotational Bands in Terms of the Selfconsistent Collective Coordinate Method

Diabatic description of rotational bands provides a clear-cut picture forunderstanding the back-bending phenomena, where the internal structure of theyrast band changes dramatically as a function of angular momentum. Amicroscopic framework to obtain the diabatic bands within the mean-fieldapproximation is presented by making use of the selfconsistent collectivecoordinate method. Applying the framework, both the ground state rotationalbands and the Stockholm bands are studied systematically for the rare-earthdeformed nuclei. An overall agreement has been achieved between the calculatedand observed rotational spectra. It is also shown that the inclusion of thedouble-stretched quadrupole-pairing interaction is crucial to obtain an overallagreement for the even-odd mass differences and the rotational spectrasimultaneously.