Electric quadrupole moments of neutron-rich nuclei 32Al and 31Al

D. Kameda, H. Ueno, K. Asahi, D. Nagae, M. Takemura, K. Shimada, A. Yoshimi, T. Nagatomo, T. Sugimoto, M. Uchida, T. Arai, K. Takase, S. Suda, T. Inoue, J. Murata, H. Kawamura, H. Watanabe, Y. Kobayashi, M. Ishihara

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The electric quadrupole moments for the ground states of 32Al and 31Al have been measured by the β ray-detected nuclear quadrupole resonance method. Spin-polarized 32Al and 31Al nuclei were obtained from the fragmentation of 40Ar projectiles at E/A = 95 MeV/nucleon, and were implanted in a single crystal α-Al 2O3 stopper. The measured Q moment of 32Al, |Q(32Al)| = 24(2) mb, is in good agreement with a conventional shell-model calculation with a full sd model space and empirical effective charges, while that of 31Al is considerably smaller than the sd calculations.

Original languageEnglish
Pages (from-to)61-64
Number of pages4
JournalHyperfine Interactions
Issue number1-3
Publication statusPublished - Nov 2007
Externally publishedYes


  • Electric quadrupole moment
  • Polarized RI beam
  • β-NQR

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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