Re-discussion of the spin assignments of the superdeformed bands in A approximate to 190 region (III) doubly odd superdeformed nuclei

The influence of the fluctuation in gamma-transition energies and the Delta I = 1 staggering on the spin assignment of superdeformed band is investiga ted for the doubly odd nuclei in mass A approximate to 190 region. The extr acted fluctuations in gamma-transition energies are not too large, implying a weak influence on their spin assignments except for the fitting paramete rs and precisions. In addition, the Delta I = 1 staggering in superdeformed signature partner pairs of doubly odd nuclei behaves differently from that in odd-A nuclei and can be understood in the framework of the collective m odel. The existence of Delta I = 1 staggering also exerts no influence on t he spin assignment except for a renormalization of fitting parameters. A mo dified ab-expresion valid in doubly odd nuclei is proposed. The smoothed tr ansition energies are employed to assign the spins of these superdeformed b ands by the ab-fitting and its modification.