Structure of the highly deformed nucleus101Sr63 and evidence for identical K=3/2 bands |
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Authors: | G Lhersonneau H Gabelmann B Pfeiffer K -L Kratz |
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Institution: | 1. Institut für Kernchemie, Universit?t Mainz, D-55099, Mainz, Germany
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Abstract: | The low-energy level scheme of theN=63 nucleus101Sr has been obtained from a β-decay study of101Rb. The ν532]5/2 and ν411]3/2 orbitals are well established as the ground state and a band head at 271.2keV, respectively. The general properties of the level scheme indicate a quadrupole deformation ofβ ? 0.4, confirming the unique feature of saturation of deformation inN ≥ 60 Sr isotopes. The energies of theK=3/2 intraband transitions in the odd-neutron neighbours99Sr61 and101Sr63 are very similar. More generally, the identical bands at low spin in98–101Sr nuclei are correlated with the mass-independent moments of inertia in this region. |
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