Precise nuclear moments of extremely proton-rich nuclus 23Al

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

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Electric quadrupole coupling constant eqQ/h of the extremely proton-rich 23Al (Iπ = 5/2+, T1/2 = 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 {pipe}eqQ/h(23Al) {pipe} = 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 {pipe}Q(23Al){pipe} ~ 160 mb, which is well explained by the shell model calculation in the sd-shell model space with the USD interaction.

Original languageEnglish
Pages (from-to)103-107
Number of pages5
JournalHyperfine Interactions
Issue number1
Publication statusPublished - 2010
Externally publishedYes


  • Al
  • Electric coupling constant
  • Q moment
  • α AlO

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


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