Hannover 2003 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

A: Atomphysik

A 15: Atomspektroskopie 2

A 15.2: Vortrag

Donnerstag, 27. März 2003, 14:15–14:30, F342

QED Boiling Vacuum: Possible Link between HFS Experiments, Nuclear Theories, and QED? — •Marco Tomaselli¹, Lon-chang Liu², and Thomas Kühl¹ — ¹GSI, D64291 Darmstadt, Germany — ²LANL, T-Division, Los Alamos, NM 87545, USA

Systematic model calculations performed for the magnetization distributions and the HFS of hydrogen-like HCI [1] reveal an important difference between experimental and theoretical results (DCM + QED). The difference persists despite the fact that DCM is one of the more consistent models which include dynamic correlations in the nuclear magnetization distributions [2] and that the QED calculations have included many high-order terms [3]. Recently the boiling of the QED vacuum has been introduced [1] in the calculations of the HFS of lithium-like ions generating contributions that so far have not been considered by the other theoretical models [4,5]. Are these terms the missed link between theories and experiments as observed in [1]? [1] M. Tomaselli et al., Can. J. Phys. 80, 1347 (2002). [2] G. Soff, HITRAP-Workshop, GSI 11, December 2002. [3] P. Sunergren, et al., Phys. Rev. A58, 1055 (1988); V. Shabaev, Workshop on Atomic Physics Research at the Future GSI Facility, GSI 9-10, December 2002. [4] V. Shabaev et al., Phys. Rev. A57, 149 (1988). [5] S. Bouchard and P. Indelicato Eur. Phys. J. D8, 59 (2000).