Measurement of the electric quadrupole moments of Na26-29

Authors
Keim, M Georg, U Klein, A Neugart, N Neuroth, M Wilbert, S Lievens, P Vermeeren, L Brown, BA
Citation
M. Keim et al., Measurement of the electric quadrupole moments of Na26-29, EUR PHY J A, 8(1), 2000, pp. 31-40
Citations number
33
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
8
Issue
1
Year of publication
2000
Pages
31 - 40
Database
ISI
SICI code
1434-6001(200005)8:1<31:MOTEQM>2.0.ZU;2-#
Abstract
The nuclear electric quadrupole moments of the isotopes Na-26, Na-27, Na-28 and Na-29 were measured by beta-NMR spectroscopy in single crystals of LiN bO3 and NaNO3. High degrees of nuclear polarization were produced by optica l pumping of the sodium atoms in a fast beam with a collinear laser beam. T he polarized nuclei were implanted into the crystals and NMR signals were o bserved in the beta-decay asymmetries. Preparatory measurements also yielde d improved values for the magnetic moments of Na27-31 and confirmed the spi n I = 3/2 for 31Na. The results are discussed in comparison with large-basi s shell model calculations.