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Origin of unit alignment in superdeformed bands in [Formula Presented] nuclei

par Fallon, Paul;Heenen, Paul-Henri ;Satuła, Wojciech;Clark, Roderick R.M.;Stephens, Frank F.S.;Deleplanque, M.A. M.A.;Diamond, Richard R.M.;Lee, I.-Y.;Macchiavelli, Augusto A.O.;Vetter, Kai
Référence Physical review. C. Nuclear physics, 60, 4, page (12)
Publication Publié, 1999

Article révisé par les pairs

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Résumé :

The results of an experimental and theoretical study of the inertias and alignments of superdeformed bands (SD) in [Formula Presented] nuclei are presented. We show that [Formula Presented] bands tend to be distributed among three groups characterized by their alignments and the number of unpaired nucleons. The alignments cluster around integer values ([Formula Presented] relative to the reference chosen for this study), but the distribution is not strongly peaked: rather it is relatively “broad” compared with the separation, suggesting that the “strict” quantized alignments observed in some nuclei are not a systematic feature of all [Formula Presented] bands. We further show that mean-field calculations reproduce the general experimental properties and give the three band groups seen in experiment, but they do not generally reproduce the specific alignment of SD band pairs; nor, in general, do they give “good” identical bands. © 1999 The American Physical Society.