An “identical” superdeformed (SD) band has been discovered in the nucleus ${}^{130}$Ce. This band has transition energies which are identical to the half-way points between the energies in the yrast SD band of ${}^{131}$Ce to a mean degeneracy of 0.4$\%$. The discovery of this band completes the chain of SD Ce isotopes from ${}^{129}$Ce to ${}^{133}$Ce. However, at $0.5\%$ of the reaction channel, it is populated with an intensity which is an order of magnitude smaller than neighboring SD bands. The valence neutron configuration is assigned as $\nu 6^1$ with a hole in either the $\left[523\right]{7/2}^{-}$ or $\left[411\right]{1/2}^{+}$ Nilsson orbitals.

• Received 20 August 1996

DOI:https://doi.org/10.1103/PhysRevC.55.519