Superdeformed rotational bands in the A similar to 140-150 mass region: A cranked relativistic mean field description

The cranked relativistic mean field approach is applied for a systematic investigation of superdeformed rotational bands observed in the A similar to 140-150 mass region. The present investigation covers yrast and in some cases also excited superdeformed bands of all nuclei of this mass region in which such bands have been observed so far. Using the parameter set NL1, which has been adjusted ten years ago to a few spherical nuclei, reasonable agreement with experimental data is obtained throughout the mass region under investigation. It is shown that the calculated properties of superdeformed rotational bands such as the dependence of the dynamic moment of inertia J((2)) with respect to the rotational frequency and the absolute value of the charge quadrupole moment Q(0) depends sensitively on the number of occupied high-Ar intruder orbitals. This is in agreement both with previous investigations within the cranked Nilsson-Strutinsky and the cranked Woods-Saxon-Strutinsky approaches and with available experimental data.