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arXiv · 1706.08778

Wavelength-dispersive spectroscopy in the hard x-ray regime of a heavy highly-charged ion: The 1s Lamb shift in hydrogen-like gold

T. Gassner·M. Trassinelli·R. Heß·U. Spillmann·D. Banas·K. -H. Blumenhagen·F. Bosch·C. Brandau·W. Chen·C. Dimopoulou·E. Förster·R. Grisenti·A. Gumberidze·S. Hagmann·P. -M. Hillenbrand·P. Indelicato·P. Jagodzinski·T. Kämpfer·C. Kozhuharov·M. Lestinsky·D. Liesen·Y. Litvinov·R. Loetzsch·B. Manil·R. Märtin·F. Nolden·M. Petridis·M. Sanjari·K. Schulze·M. Schwemlein·A. Simionovici·M. Steck·T. Stöhlker·C. Szabo·S. Trotsenko·I. Uschmann·G. Weber·O. Wehrhan·N. Winckler·D. Winters·N. Winters·E. Ziegler·H. Beyer
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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 1s 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.

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T. Gassner, M. Trassinelli, R. Heß, U. Spillmann, D. Banas, K. -H. Blumenhagen, F. Bosch, C. Brandau, W. Chen, C. Dimopoulou, E. Förster, R. Grisenti, A. Gumberidze, S. Hagmann, P. -M. Hillenbrand, P. Indelicato, P. Jagodzinski, T. Kämpfer, C. Kozhuharov, M. Lestinsky, D. Liesen, Y. Litvinov, R. Loetzsch, B. Manil, R. Märtin, F. Nolden, M. Petridis, M. Sanjari, K. Schulze, M. Schwemlein, A. Simionovici, M. Steck, T. Stöhlker, C. Szabo, S. Trotsenko, I. Uschmann, G. Weber, O. Wehrhan, N. Winckler, D. Winters, N. Winters, E. Ziegler, H. Beyer. 2017-06-27. Wavelength-dispersive spectroscopy in the hard x-ray regime of a heavy highly-charged ion: The 1s Lamb shift in hydrogen-like gold. https://doi.org/10.1088/1367-2630/aad01d

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