Superdeformed excitations in ${}^{195}\mathrm{Pb}$ were populated via the ${}^{174}\mathrm{Yb}$(${}^{26}\mathrm{Mg}$,$5n$) reaction, and γ-ray spectroscopy measurements were made with Gammasphere. Analysis of the intensities of the discrete transitions between superdeformed states indicates that the decay out occurs from the favored band of the lowest signature pair. The quasicontinuous spectra associated with the decay of superdeformed bands in ${}^{195}\mathrm{Pb}$ have been extracted for both signatures. The onset of γ-ray intensity and the normalized γ-ray intensity of the quasicontinuum decay spectrum are used to set a lower bound of 2.5 MeV at $\sim 11\hslash$ for superdeformed excitation energy relative to normal deformed excitations in ${}^{195}\mathrm{Pb}$.

• Received 18 October 2004

DOI:https://doi.org/10.1103/PhysRevC.71.044310