Spins of Triaxial Superdeformed Bands in ⁸⁶Zr

Transition energies of three triaxial superdeformed bands in ⁸⁶Zr were fitted by the power-series expansion of spin I in odd powers of rotational frequeney ω and by the two-parameter expression for rotational spectra. Level spins of these bands were assigned by means of the least-squares fits.