Character of the low-lying $0^{-}$ and $0^{+}$ states in the even Rn, Ra, Th, U, and Pu isotopes

The systematics of the energies and inverse moments of inertia are compared for the ground state and low-lying $K=0^{+}$ and $K=0^{-}$ bands in the even Rn, Ra, Th, U, and Pu nuclei. This comparison suggests a structural relationship between the excited $K=0^{+}$ band and the well known $K=0^{-}$ band as expected from the calculations of Chasman.

NUCLEAR STRUCTURE Systematics of energies and $\frac{h}{2}$ values of low-lying $K=0^{+}$ and $K=0^{-}$ bands in even Rn, Ra, Th, U, and Pu isotopes.