ROTATING PSEUDO-OSCILLATOR SCHEME - PSEUDO-SPIN SYMMETRY AND IDENTICAL BANDS

A simple coupling scheme for rotating nuclei, based on the pseudo-spin symmetry of the nuclear mean field, is proposed. This scheme applies to rotational bands built on natural-parity orbitals carrying aligned pseudo-spin, and can be used to classify intrinsic configurations in a rotating nucleus in terms of quantum numbers of the rotating harmonic oscillator potential. The effect of the shape polarization due to nat ural-parity orbitals is investigated for some superdeformed bands from the Gd/Dy region. (C) 1998 Elsevier Science B.V. All rights reserved.