Nature of first two rotational bands in 152Sm

I have applied a simple two-state mixing model to members of the first two rotational bands in 152Sm. Resulting mixing amplitudes are similar for 0+, 2+, and 4+. The lower basis-state band is found to be only slightly more collective than the second one. The results indicate that the un-mixed bands have the character of K=0 rotational bands.