Systematic study of superdeformed rotational bands in Hg isotopes

Abstract

The exponential model with pairing attenuation and the nuclear softness formula have been employed to deduce the band-head spins of all the SD bands in Hg isotopes. A least-squares fitting method is performed for the γ-transition energies and the model parameters are calculated. The calculated γ-transition energies and the corresponding fitting parameters are found to depend sensitively on the established level spins. The identical band pairs in the Hg isotopes are investigated and the role of alignment is explored.