| Article | |
| Report number | CERN-PH-EP-2005-040 |
| Title | New measurement and reevaluation of the nuclear magnetic and quadrupole moments of $^{8}$Li and $^{9}$Li |
| Author(s) |
Borremans, D ; Balabanski, D L ; Gheysen, S ; Himpe, P ; Mallion, S ; Neyens, G ; Vermeulen, N ; Yordanov, D ; Blaum, K ; Geithner, W ; Kowalska, M ; Lassen, J ; Neugart, R ; Lievens, P |
| Affiliation | (Instituut voor Kern- en Stralingsfysica, K.U. Leuven) ; (CERN) ; (Univ. Mainz) ; (Laboratorium voor Vaste-Stoffysica en Magnetisme, K.U. Leuven) |
| Publication | 2005 |
| Imprint | 13 Sep 2005 |
| Number of pages | 20 |
| Note | revised version submitted on 2005-12-12 15:14:24 |
| In: | Phys. Rev. C 72 (2005) 44309-1-9 |
| DOI | 10.1103/PhysRevC.72.044309 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE ; IS389 |
| Abstract | The nuclear magnetic moment of $^{9}$Li and the quadrupole moments of $^{8}$Li and $^{9}$Li have been measured using $\beta$-asymmetry detection of nuclear magnetic resonance ($\beta$-NMR) on optically polarized beams at ISOLDE/CERN. The radioactive beams were implanted in Si for g factor measurements and in Zn, LiNbO$_{3}$, and LiTaO$_{3}$ crystals for quadrupole moment measurements. The electric field gradient V$_{zz}$ = 4.26(4) $\times$10$^{15}$ V/cm$^{2}$ is deduced for Li in Zn. Using a recently adopted reference value Q($^{7}$Li) = -40.0(3) mb, we reevaluated all earlier reported nuclear quadrupole moments of $^{8}$Li and $^{9}$Li. Based on all available previous and present data, the adopted quadrupole moments for these isotopes are Q($^{8}$Li) = +31.4(2) mb and Q($^{9}$Li) = - 30.6(2) mb. The magnetic moment of $^{9}$Li is deduced as $\mu(^{9}$Li) = 3.43678(6)$\mu\scriptstyle_\textrm{N}$ . The values are compared to predictions from shell-model and cluster-model calculations. |
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記錄創建於2005-09-15，最後更新在2016-04-13
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