New measurement and reevaluation of the nuclear magnetic andquadrupole moments of {sup 8}Li and {sup 9}Li

Journal Article · Sat Oct 01 04:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.044309· OSTI ID:20699055

Borremans, D; Yordanov, D; Balabanski, D L; Neyens, G; Vermeulen, N; Himpe, P; Gheysen, S; Mallion, S ^[1]; Lassen, J; Kowalska, M; Neugart, R; Geithner, W ^[2]; Blaum, K ^[3]; Lievens, P ^[4]

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1. Instituut voor Kern- en Stralingsfysica, K.U.Leuven, B-3001 Leuven (Belgium)
2. Institut fuer Physik, Universitaet Mainz, D-55099 Mainz (Germany)
3. PH Department, CERN, CH-1211 Geneva 23 (Switzerland)
4. Laboratorium voor Vaste-Stoffysica en Magnetisme, K.U.Leuven, B-3001 Leuven (Belgium)

The nuclear magnetic moment of {sup 9}Li and the quadrupole moments of {sup 8}Li and {sup 9}Li have been measured by use of the {beta}-asymmetry detection of nuclear magnetic resonance on optically polarized beams at ISOLDE/CERN. The radioactive beams were implanted in Si for g-factor measurements and in Zn, LiNbO{sub 3}, and LiTaO{sub 3} crystals for quadrupole moment measurements. The electric-field gradient V{sub zz}=4.26(4)x10{sup 15} V/cm{sup 2} is deduced for Li in Zn. Using a recently adopted reference value, Q({sup 7}Li)=-40.0(3) mb, we reevaluated all earlier reported nuclear quadrupole moments of {sup 8}Li and {sup 9}Li. Based on all available previous and present data, the adopted quadrupole moments for these isotopes are Q({sup 8}Li)=+31.4(2) mb and Q({sup 9}Li)=-30.6(2) mb. The magnetic moment of {sup 9}Li is deduced as {mu}({sup 9}Li)=3.43678(6){mu}{sub N}. The values are compared with predictions from shell-model and cluster-model calculations.

• OSTI ID: 20699055
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASYMMETRY
CLUSTER MODEL
ELECTRIC FIELDS
LANDE FACTOR
LITHIUM 7
LITHIUM 8
LITHIUM 9
LITHIUM COMPOUNDS
NIOBATES
NUCLEAR ELECTRIC MOMENTS
NUCLEAR MAGNETIC MOMENTS
NUCLEAR MAGNETIC RESONANCE
POLARIZED BEAMS
QUADRUPOLE MOMENTS
SHELL MODELS