Abstract
The low-energy level scheme of theN=63 nucleus101Sr has been obtained from a β-decay study of101Rb. The ν[532]5/2 and ν[411]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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This work was supported by the German Federal Minister for Research and Technology (BMFT) under contract number 06 MZ 106. We thank Dr. H. Ohm for making his101Nb data available to us prior to publication.
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Lhersonneau, G., Gabelmann, H., Pfeiffer, B. et al. Structure of the highly deformed nucleus101Sr63 and evidence for identical K=3/2 bands. Z. Physik A - Hadrons and Nuclei 352, 293–301 (1995). https://doi.org/10.1007/BF01289502
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DOI: https://doi.org/10.1007/BF01289502