Spin Assignment of the First Discovered Superdeformed Band 152Dy(1) and Some Superdeformed Bands in Neighboring Nuclei

By using various approaches to the spin assignment, including the best-fit-method, the variation of moment of inertia with angular momentum, the bandhead moment of inertia J0 systematics, and the signature systematics, the spin of the lowest level observed in the first discovered superdeformed band 152Dy(1)is definitely predicted to be I0 = 26(Eγ(I0 + 2 → I0) = 602.4 keV), rather than the previously predicted I0 = 22,24, or 25. The spin prediction and properties of some superdeformed bands in the A ~ 150 region are discussed.