_version_ 1866913797695864832
author Pfäfflein, Philip
Weber, Günter
Allgeier, Steffen
Andelkovic, Zoran
Bernitt, Sonja
Bondarev, Andrey I.
Borovik, Alexander
Duval, Louis
Fleischmann, Andreas
Forstner, Oliver
Friedrich, Marvin
Glorius, Jan
Gumberidze, Alexandre
Hahn, Christoph
Hengstler, Daniel
Herdrich, Marc Oliver
Herfurth, Frank
Hillenbrand, Pierre-Michel
Kalinin, Anton
Kiffer, Markus
Kröger, Felix Martin
Kubullek, Maximilian
Kuntz, Patricia
Lestinsky, Michael
Litvinov, Yuri A.
Löher, Bastian
Menz, Esther Babette
Over, Tobias
Petridis, Nikolaos
Ringleb, Stefan
Sighu, Ragandeep Singh
Spillmann, Uwe
Trotsenko, Sergiy
Warczak, Andrzej
Zhu, Binghui
Enss, Christian
Stöhlker, Thomas
author_facet Pfäfflein, Philip
Weber, Günter
Allgeier, Steffen
Andelkovic, Zoran
Bernitt, Sonja
Bondarev, Andrey I.
Borovik, Alexander
Duval, Louis
Fleischmann, Andreas
Forstner, Oliver
Friedrich, Marvin
Glorius, Jan
Gumberidze, Alexandre
Hahn, Christoph
Hengstler, Daniel
Herdrich, Marc Oliver
Herfurth, Frank
Hillenbrand, Pierre-Michel
Kalinin, Anton
Kiffer, Markus
Kröger, Felix Martin
Kubullek, Maximilian
Kuntz, Patricia
Lestinsky, Michael
Litvinov, Yuri A.
Löher, Bastian
Menz, Esther Babette
Over, Tobias
Petridis, Nikolaos
Ringleb, Stefan
Sighu, Ragandeep Singh
Spillmann, Uwe
Trotsenko, Sergiy
Warczak, Andrzej
Zhu, Binghui
Enss, Christian
Stöhlker, Thomas
contents Using novel metallic magnetic calorimeter detectors at the CRYRING@ESR, we recorded X-ray spectra of stored and electron cooled helium-like uranium (U$^{90+}$) with an unmatched spectral resolution of close to 90 eV. This allowed for an accurate determination of the energies of all four components of the K$α$ transitions in U$^{90+}$. We find good agreement with state-of-the-art bound-state QED calculations for the strong-field regime. Our results do not support any systematic deviation between experiment and theory in helium-like systems, the presence of which was subject of intense debates in recent years.
format Preprint
id arxiv_https___arxiv_org_abs_2407_04166
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Quantum Electrodynamics in Strong Electromagnetic Fields: Substate Resolved K$α$ Transition Energies in Helium-like Uranium
Pfäfflein, Philip
Weber, Günter
Allgeier, Steffen
Andelkovic, Zoran
Bernitt, Sonja
Bondarev, Andrey I.
Borovik, Alexander
Duval, Louis
Fleischmann, Andreas
Forstner, Oliver
Friedrich, Marvin
Glorius, Jan
Gumberidze, Alexandre
Hahn, Christoph
Hengstler, Daniel
Herdrich, Marc Oliver
Herfurth, Frank
Hillenbrand, Pierre-Michel
Kalinin, Anton
Kiffer, Markus
Kröger, Felix Martin
Kubullek, Maximilian
Kuntz, Patricia
Lestinsky, Michael
Litvinov, Yuri A.
Löher, Bastian
Menz, Esther Babette
Over, Tobias
Petridis, Nikolaos
Ringleb, Stefan
Sighu, Ragandeep Singh
Spillmann, Uwe
Trotsenko, Sergiy
Warczak, Andrzej
Zhu, Binghui
Enss, Christian
Stöhlker, Thomas
Atomic Physics
Using novel metallic magnetic calorimeter detectors at the CRYRING@ESR, we recorded X-ray spectra of stored and electron cooled helium-like uranium (U$^{90+}$) with an unmatched spectral resolution of close to 90 eV. This allowed for an accurate determination of the energies of all four components of the K$α$ transitions in U$^{90+}$. We find good agreement with state-of-the-art bound-state QED calculations for the strong-field regime. Our results do not support any systematic deviation between experiment and theory in helium-like systems, the presence of which was subject of intense debates in recent years.
title Quantum Electrodynamics in Strong Electromagnetic Fields: Substate Resolved K$α$ Transition Energies in Helium-like Uranium
topic Atomic Physics
url https://arxiv.org/abs/2407.04166