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 for u nderstanding the back-bending phenomena, where the internal structure of th e yrast band changes dramatically as a function of angular momentum. A micr oscopic framework to obtain the diabatic bands within the mean-field approx imation is presented by making use of the selfconsistent collective coordin ate method. Applying the framework, both the ground state rotational bands and the Stockholm bands are studied systematically for the rare-earth defor med nuclei. An overall agreement has been achieved between the calculated a nd observed rotational spectra. It is also shown that the inclusion of the double-stretched quadrupole-pairing interaction is crucial to obtain an ove rall agreement for the even-odd mass differences and the rotational spectra simultaneously.