Details

Autor(en) / Beteiligte

• Noertershaeuser, W.
• Institut fuer Kernchemie, Universitaet Mainz, D-55128 Mainz
• Tiedemann, D.
• Zakova, M.
• Andjelkovic, Z.
• Cazan, R.
• Kraemer, J.
• Krieger, A.
• Neugart, R.
• Blaum, K.
• Yordanov, D. T.
• Bissell, M. L.
• Drake, G. W. F.
• Geppert, Ch
• Physikalisches Institut, Universitaet Tuebingen, D-72076 Tuebingen
• Kowalska, M.
• Sanchez, R.
• Schmidt-Kaler, F.
• Yan, Z.-C.
• Zimmermann, C.

Titel

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

Ist Teil von

• Physical review letters, 2009-02, Vol.102 (6)

Ort / Verlag

United States

Erscheinungsjahr

2009

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• 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.