TUNNELING PROBABILITY FOR DECAYS OUT OF SUPERDEFORMED BANDS

The decay of superdeformed rotational bands is studied within the fram ework of the compound mixing model, in which the intensity loss is gov erned by the tunneling probability between the superdeformed and the n ormal potential well, the electromagnetic transition rates and the lev el density of normal compound states. The tunneling probabilities are calculated microscopically for 30 superdeformed bands, taking into acc ount pairing and shell effects. The calculated intensities are compare d with experiment for the cases of 152Dy and 192Hg, which are represen tative of the A almost-equal-to 150 and 190 regions.