“Identical” superdeformed band in 151Dy: further evidence for the pseudospin coupling scheme

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Abstract

One of the four new excited superdeformed bands found in 151Dy is characterized by transition energies that lie midway between the γ-ray energies of the yrast superdeformed band in 152Dy. This result adds significant new information on the issue of “identical” bands, as it confirms predictions based on the strong coupling model and the pseudospin coupling scheme.

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      The complete alignment of pseudospin along the axis of rotation was cited as partially responsible for superdeformed bands in different nuclei having virtually identical moments of inertia [27]. These bands appeared in odd, even–even, and odd–odd nuclei [28–44,26,45]. The triaxial harmonic oscillator was also shown to have pseudospin symmetry as well [46,47].

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