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Hyperfine Interactions

, Volume 198, Issue 1–3, pp 103–107 | Cite as

Precise nuclear moments of extremely proton-rich nuclus 23 Al

  • T. Nagatomo
  • H. Ueno
  • M. Mihara
  • K. Matsuta
  • A. Yoshimi
  • Y. Ichikawa
  • K. Yamada
  • H. Kawamura
  • A. Ozawa
  • T. Moriguchi
  • Y. Ishibashi
  • K. Asahi
  • M. Uchida
  • K. Suzuki
  • T. Inoue
  • Y. Hasama
  • H. Iijima
  • T. Sumikama
  • M. Fukuda
  • T. Minamisono
Article

Abstract

Electric quadrupole coupling constant eqQ/h of the extremely proton-rich 23Al (I π  = 5/2 + , T 1/2 = 0.47 s) nucleus implanted into an Al2O3 single crystal has been measured for the first time, using the β-ray detecting nuclear quadrupole resonance method (β-NQR) in a high magnetic field. As a preliminary result, the quadrupole coupling constant was determined as |eqQ/h(23Al) | = 2.66±0.77 MHz. Using the quadrupole coupling constant of 27Al in Al2O3 as a reference, the Q moment of the ground state of 23Al was extracted as |Q(23Al)| ~ 160 mb, which is well explained by the shell model calculation in the sd-shell model space with the USD interaction.

Keywords

Electric coupling constant Q moment 23Al α Al2O3 

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • T. Nagatomo
    • 1
    • 7
  • H. Ueno
    • 1
  • M. Mihara
    • 2
  • K. Matsuta
    • 2
  • A. Yoshimi
    • 1
  • Y. Ichikawa
    • 1
  • K. Yamada
    • 1
  • H. Kawamura
    • 1
  • A. Ozawa
    • 3
  • T. Moriguchi
    • 3
  • Y. Ishibashi
    • 3
  • K. Asahi
    • 4
  • M. Uchida
    • 4
  • K. Suzuki
    • 4
  • T. Inoue
    • 4
  • Y. Hasama
    • 4
  • H. Iijima
    • 4
  • T. Sumikama
    • 5
  • M. Fukuda
    • 2
  • T. Minamisono
    • 6
  1. 1.RIKEN Nishina CenterSaitamaJapan
  2. 2.Osaka UniversityOsakaJapan
  3. 3.University of TsukubaIbarakiJapan
  4. 4.Tokyo Institute of TechnologyTokyoJapan
  5. 5.Tokyo University of ScienceChibaJapan
  6. 6.Fukui University of TechnologyFukuiJapan
  7. 7.International Christian UniversityTokyoJapan

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