1. Wavelength-dispersive spectroscopy in the hard x-ray regime of a heavy highly-charged ion: the 1s Lamb shift in hydrogen-like gold
- Author
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T Gassner, M Trassinelli, R Heß, U Spillmann, D Banaś, K-H Blumenhagen, F Bosch, C Brandau, W Chen, Chr Dimopoulou, E Förster, R E Grisenti, A Gumberidze, S Hagmann, P-M Hillenbrand, P Indelicato, P Jagodzinski, T Kämpfer, Chr Kozhuharov, M Lestinsky, D Liesen, Yu A Litvinov, R Loetzsch, B Manil, R Märtin, F Nolden, N Petridis, M S Sanjari, K S Schulze, M Schwemlein, A Simionovici, M Steck, Th Stöhlker, C I Szabo, S Trotsenko, I Uschmann, G Weber, O Wehrhan, N Winckler, D F A Winters, N Winters, E Ziegler, and H F Beyer
- Subjects
quantum electrodynamics test ,strong Coulomb field ,energy-dispersive x-ray spectroscopy ,storage rings ,Science ,Physics ,QC1-999 - Abstract
Accurate spectroscopy of highly-charged high- Z ions in a storage ring is demonstrated to be feasible by the use of specially adapted crystal optics. The method has been applied for the measurement of the 1 s Lamb shift in hydrogen-like gold (Au ^+78 ) in a storage ring through spectroscopy of the Lyman x-rays. This measurement represents the first result obtained for a high- Z element using high-resolution wavelength-dispersive spectroscopy in the hard x-ray regime, paving the way for sensitivity to higher-order QED effects.
- Published
- 2018
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