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Giant quadrupole moment andproton halo discovered in8B

  • Section I: Nuclear Moments and Nuclear β-decays Studied by Polarization Phenomena
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Abstract

The nuclear quadrupole moment of8B(I π=2+,T 1/2=769 ms) has been determined by use of a modified β-NMR detection as |Q(8B)|=68.3±2.1 mb, which is twice the prediction of the Cohen-Kurath shell model calculation. The anomalous quadrupole moment which is carried mainly by the protons in the nucleus, has been accounted for by the proton halo effect.

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Authors and Affiliations

  1. Department of Physics, Faculty of Science, Osaka University, 560, Toyonaka, Osaka, Japan

    T. Minamisono, T. Ohtsubo, I. Minami, A. Kitagawa, S. Fukuda, Y. Nakayama, M. Fukuda, K. Matsuta, Y. Nojiri, S. Takeda, H. Sagawa & H. Kitagawa

  2. Department of Chemistry, Faculty of Science, Osaka University, 560, Toyonaka, Osaka, Japan

    S. Takeda

  3. Department of Physics, Faculty of Science, The Tokyo University, 113, Bunkyo, Tokyo, Japan

    H. Sagawa

  4. Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, 567, Ibaraki, Osaka, Japan

    H. Kitagawa

Authors
  1. T. Minamisono
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  2. T. Ohtsubo
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  3. I. Minami
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  4. A. Kitagawa
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  5. S. Fukuda
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  6. Y. Nakayama
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  7. M. Fukuda
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  8. K. Matsuta
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  9. Y. Nojiri
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  10. S. Takeda
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  11. H. Sagawa
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  12. H. Kitagawa
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Minamisono, T., Ohtsubo, T., Minami, I. et al. Giant quadrupole moment andproton halo discovered in8B. Hyperfine Interact 78, 165–168 (1993). https://doi.org/10.1007/BF00568133

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  • DOI: https://doi.org/10.1007/BF00568133

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