Speaker
Dr
Wilfried Nörtershäuser
(University of Mainz)
Description
A measurement of the optical isotope shift in beryllium isotopes will allow a
model-independent determination of the nuclear charge radius of Be-7,9,10 and the
halo nucleus Be-11. This is based on an accurate calculation of the mass-dependent
part of the isotope shift in the respective transition, combined with a precise
measurement of the total isotope shift. Both values must be determined with an
accuracy of better than 1E-5. Similar measurements have been performed recently on
He-6 in a Magneto-Optical Trap [Wang et al. PRL 93, 142501 (2004)] and on Li-8,9,11
with Resonance Ionization Spectroscopy [Ewald et al., PRL 93, 113002 (2004)].
Corresponding atomic structure calculations with the required precision have so-far
been demonstrated only for systems with up to three electrons. Thus, we propose to
measure the isotope shift in the 2s-2p transition of laser-cooled Be-ions stored in a
Paul trap.
Author
Dr
Wilfried Nörtershäuser
(University of Mainz)
Co-authors
Dr
Bruce A Bushaw
(Pacific Northwest National Laboratory, USA)
Mr
Christopher Geppert
(GSI Darmstadt, Germany)
Prof.
Claus Zimmermann
(University of Tübingen, Germany)
Mr
Dirk Tiedemann
(University of Mainz, Germany)
Prof.
Ferdinand Schmidt-Kaler
(University of Ulm, Germany)
Prof.
Gordon W.F. Drake
(University of Windsor, Canada)
Dr
Guido Ewald
(University of Tübingen, Germany)
Prof.
H.-Jürgen Kluge
(GSI Darmstadt, Germany)
Mrs
Natalya Miski-Oglu
(University of Mainz, Germany)
Mr
Rodolfo Sanchez
(University of Mainz, Germany)
Prof.
Zong-Chao Yan
(University of New Brunswick, Canada)
