Empirical formula applied to the lowest excitation energies of the   natural parity odd multipole states in even-even nuclei
  We applied our recently proposed empirical formula, a formula quite successful in describing essential trends of the lowest excitation energies of the natural parity even multipole states, to the lowest excitation energies of the natural parity odd multipole states in even-even nuclei throughout the entire periodic table. Even though the systematic behavior of the lowest excitation energies of odd multipole states is quite different from those of even multipole states, we have shown that the same empirical formula also holds reasonably well for the odd multipole states with the exception of a few certain instances. 
Guanghao Jin, Jin-Hee Yoon, Dongwoo Cha