Attempt of applying the interacting-boson-fermion model to the superdeformed bands of Hg-191,Hg-193 - art. no. 044310

Energy levels, dynamic moments of inertia of the superdeformed bands of Hg- 191,Hg-193 are studied by incorporating fermion degrees of freedom with the superdeformed interacting boson model. Except for the cases with band cros sing, it is found that the single-fermion orbital dominance is sufficient f or describing most of the superdeformed bands. The energy levels can be rep roduced quite well. The dynamic moments of inertia can be reproduced reason ably well for most of the bands. However, the staggering of the moment of i nertia observed in some superdeformed bands cannot be reproduced in the mod el. The general features of the wave functions are discussed. [S0556-2813(9 9)04509-4].