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A: Fachverband Atomphysik
A 15: Poster I
A 15.10: Poster
Dienstag, 3. März 2009, 16:30–19:00, VMP 9 Poster
Nuclear Charge Radii Measurements of 7,9,10,11Be with Laser Spectroscopy — •Monika Žáková1, Zoran Andjelkovic1, Klaus Blaum4, Mark L. Bissell5, Gordon W. F. Drake6, Christopher Geppert1,2,3, Magdalena Kowalska8, Jörg Krämer1, Andreas Krieger1, Rainer Neugart1, Rodolfo Sánchez2, Ferdinand Schmidt-Kaler7, Dirk Tiedemann1, Zong Chao Yan9, Deyan Yordanov4, Claus Zimmermann3, and Wilfried Nörtershäuser1,2 — 1Institut für Kernchemie, Universität Mainz, 55099 Mainz, Germany — 2GSI, 64291 Darmstadt, Germany — 3Institut für Physik, Universität Tübingen, 72076 Tübingen, Germany — 4MPI für Kernphysik, D-69117 Heidelberg, Germany — 5Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, 3001 Leuven, Belgium — 6Department of Physics, University of Windsor, Windsor, Ontario, Canada, N9B 3P4 — 7Institut für Quanteninformationsverarbeitung, Universitä t Ulm, 89081 Ulm, Germany — 8CERN, CH-1211 Geneva 23, Switzerland — 9Department of Physics, University of New Brunswick, New Brunswick, Canada E3B 5A3
The rms nuclear charge radii of 7,10,11Be have been determined for the first time using frequency-comb based collinear laser spectroscopy on-line. Spectroscopy with two frequency-stabilized dye lasers and combination with recent precise atomic theory calculations allowed us to extract these charge radii. Of particular interest is the nuclear charge radius of 11Be, where one of the neutrons is loosely bound to the 10Be core and creates so called ‘halo nucleus’. The obtained isotope shifts for the D1 and D2-lines and the corresponding charge radii are presented.