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Phys. Rev. Lett. 86, 3735–3738 (2001)

Electromagnetic Moments of the β-Emitting Nucleus 16N

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K. Matsuta1,*, T. Miyake1, K. Minamisono1, A. Morishita1,†, S. Momota2, Y. Nojiri2, M. Mihara1, M. Fukuda1, K. Sato1, S. Y. Zhu1,3, H. Kitagawa4, H. Sagawa5, and T. Minamisono1
1Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
2Kochi Institute of Technology, Tosayamada, Kochi 782-8502, Japan
3CIAE, P.O. Box 275-50, Beijing 102413, People's Republic of China
4KEK, 1-1 Oho, Tukuba, Ibaraki 305-0801, Japan
5Center for Mathematical Sciences, University of Aizu, Fukushima 965-8580, Japan

Received 10 October 2000; published in the issue dated 23 April 2001

The nuclear magnetic dipole moment μ and electric quadrupole moment Q of the β-emitting 16N(Iπ = 2-,T1/2 = 7.13 s) nucleus have been determined for the first time by detecting its β-NMR in a MgO crystal and β-NQR (nuclear quadrupole resonance) in a TiO2 crystal to be |μ| = (1.9859±0.0011)μN and |Q| = (17.9±1.7) mb, respectively. Although the prediction of μ given by the Hartree-Fock calculation agrees well with the experiment, an abnormally small effective charge for neutrons is required to account for the experimental Q.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.3735
DOI:
10.1103/PhysRevLett.86.3735
PACS:
21.10.Ky, 24.70.+s, 27.20.+n, 76.60.-k

*Electronic address: matsuta@hep.sci.osaka-u.ac.jp

†Present address: Sumitomo Special Steel, Japan.

 
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