Nuclear Charge Radii of {sup 7,9,10}Be and the One-Neutron Halo Nucleus {sup 11}Be

Journal Article · Fri Feb 13 04:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.062503· OSTI ID:21180197

Noertershaeuser, W ^[1]; Tiedemann, D; Zakova, M; Andjelkovic, Z; Cazan, R; Kraemer, J; Krieger, A; Neugart, R ^[2]; Blaum, K; Yordanov, D T ^[3]; Bissell, M L ^[4]; Drake, G W. F. ^[5]; Geppert, Ch ^[1]; Kowalska, M ^[6]; Sanchez, R ^[1]; Schmidt-Kaler, F ^[7]; Yan, Z -C ^[8]; Zimmermann, C ^[9]

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1. GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, D-64291 Darmstadt (Germany)
2. Institut fuer Kernchemie, Universitaet Mainz, D-55128 Mainz (Germany)
3. Max-Planck-Institut fuer Kernphysik, D-69117 Heidelberg (Germany)
4. Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven (Belgium)
5. Department of Physics, University of Windsor, Windsor, Ontario, N9B 3P4 (Canada)
6. CERN, Physics Department, CH-1211 Geneva 23 (Switzerland)
7. Quanteninformationsverarbeitung, Universitaet Ulm, D-89069 Ulm (Germany)
8. Department of Physics, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3 (Canada)
9. Physikalisches Institut, Universitaet Tuebingen, D-72076 Tuebingen (Germany)

Nuclear charge radii of {sup 7,9,10,11}Be have been determined by high-precision laser spectroscopy. On-line measurements were performed with collinear laser spectroscopy in the 2s{sub 1/2}{yields}2p{sub 1/2} transition on a beam of Be{sup +} ions. Collinear and anticollinear laser beams were used simultaneously, and the absolute frequency determination using a frequency comb yielded an accuracy in the isotope-shift measurements of about 1 MHz. Combining this with accurate calculations of the mass-dependent isotope shifts yields nuclear charge radii. The charge radius decreases from {sup 7}Be to {sup 10}Be and then increases for the halo nucleus {sup 11}Be. When comparing our results with predictions of ab initio nuclear-structure calculations we find good agreement. Additionally, the nuclear magnetic moment of {sup 7}Be was determined to be -1.3995(5){mu}{sub N} and that of {sup 11}Be was confirmed with an accuracy similar to previous {beta}-NMR measurements.

• OSTI ID: 21180197
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATOMIC NUMBER
BERYLLIUM 10
BERYLLIUM 11
BERYLLIUM 7
BERYLLIUM 9
BERYLLIUM IONS
LASER SPECTROSCOPY
NUCLEAR HALOS
NUCLEAR MAGNETIC MOMENTS
NUCLEAR MAGNETIC RESONANCE
NUCLEAR STRUCTURE
SPECTRAL SHIFT