Spin control of B-12 and N-12 and the axial charge from their beta-ray spin-alignment correlations

Authors
Yamaguchi, T Minamisono, K Ikeda, T Muramoto, Y Fukuda, M Matsuta, K Nojiri, Y Minamisono, T
Citation
T. Yamaguchi et al., Spin control of B-12 and N-12 and the axial charge from their beta-ray spin-alignment correlations, HYPER INTER, 121(1-8), 1999, pp. 701-705
Citations number
10
Categorie Soggetti
Physics
Journal title
HYPERFINE INTERACTIONS
ISSN journal
03043843 → ACNP
Volume
121
Issue
1-8
Year of publication
1999
Pages
701 - 705
Database
ISI
SICI code
0304-3843(1999)121:1-8<701:SCOBAN>2.0.ZU;2-9
Abstract
The spin manipulation technique by use of the beta-NMR is further refined, based on the recent thorough studies of hyperfine interactions of B-12 and N-12 in Mg. By using this technique, the alignment correlation terms in the beta-ray angular distribution of the A = 12 system are precisely measured, so that the axial charge is singled out to be y = 4.66 +/- 0.06 (stat.) +/ - 0.13 (syst.) which shows clear mesonic enhancement over the impulse value .