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Measurement of the electric quadrupole moments of 26–29Na

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Abstract

The nuclear electric quadrupole moments of the isotopes 26Na, 27Na, 28Na and 29Na were measured by β-NMR spectroscopy in single crystals of LiNbO3 and NaNO3. High degrees of nuclear polarization were produced by optical pumping of the sodium atoms in a fast beam with a collinear laser beam. The polarized nuclei were implanted into the crystals and NMR signals were observed in the β-decay asymmetries. Preparatory measurements also yielded improved values for the magnetic moments of 27–31Na and confirmed the spin I = 3/2 for 31Na. The results are discussed in comparison with large-basis shell model calculations.

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Authors and Affiliations

  1. EP Division, CERN, CH-1211, Geneva 23, Switzerland

    M. Keim

  2. Institut für Physik, Universität Mainz, D-55099, Mainz, Germany

    U. Georg, A. Klein, R. Neugart, M. Neuroth & S. Wilbert

  3. Laboratorium voor Vaste-Stoffysica en Magnetisme, K. U. Leuven, B-3001, Leuven, Belgium

    P. Lievens

  4. Instituut voor Kern- en Stralingsfysica, K. U. Leuven, B-3001, Leuven, Belgium

    L. Vermeeren

  5. Department of Physics and Astronomy and NSCL, Michigan State University, East Lansing, MI, 48824, USA

    B. A. Brown

Authors
  1. M. Keim
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  2. U. Georg
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  4. R. Neugart
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  6. S. Wilbert
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  7. P. Lievens
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  9. B. A. Brown
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ISOLDE Collaboration

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Communicated by D. Schwalm

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Keim, M., Georg, U., Klein, A. et al. Measurement of the electric quadrupole moments of 26–29Na. Eur. Phys. J. A 8, 31–40 (2000). https://doi.org/10.1007/s100500070117

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