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Testing strong-field QED to second-order in the highly correlated atomic system berylliumlike Pb78+ by electron-ion recombination spectroscopy

Fuente: arXiv

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Détails bibliographiques
Auteurs principaux:	Schippers, S., Brandau, C., Fuchs, S., Lestinsky, M., Wang, S. X., Zhang, C. Y., Badnell, N. R., Borovik Jr., A., Fogle, M., Hannen, V., Harman, Z., Hillenbrand, P. -M., Menz, E. B., Zhang, Y., Andelkovic, Z., Herfurth, F., Heß, R., Kalinin, A., Kozhuharov, C., Krantz, C., Litvinov, S., Lorentz, B., Spillmann, U., Steck, M., Vorobyev, G., Banaś, D., Fritzsche, S., Lindroth, E., Ma, X., Müller, A., Schuch, R., Surzhykov, A., Trassinelli, M., Ueberholz, K., Weinheimer, C., Stöhlker, Th.
Format:	Preprint
Publié:	2025
Sujets:	Atomic Physics
Accès en ligne:	Acceder al recurso
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_version_	1866912580066344960
author	Schippers, S. Brandau, C. Fuchs, S. Lestinsky, M. Wang, S. X. Zhang, C. Y. Badnell, N. R. Borovik Jr., A. Fogle, M. Hannen, V. Harman, Z. Hillenbrand, P. -M. Menz, E. B. Zhang, Y. Andelkovic, Z. Herfurth, F. Heß, R. Kalinin, A. Kozhuharov, C. Krantz, C. Litvinov, S. Lorentz, B. Spillmann, U. Steck, M. Vorobyev, G. Banaś, D. Fritzsche, S. Lindroth, E. Ma, X. Müller, A. Schuch, R. Surzhykov, A. Trassinelli, M. Ueberholz, K. Weinheimer, C. Stöhlker, Th.
author_facet	Schippers, S. Brandau, C. Fuchs, S. Lestinsky, M. Wang, S. X. Zhang, C. Y. Badnell, N. R. Borovik Jr., A. Fogle, M. Hannen, V. Harman, Z. Hillenbrand, P. -M. Menz, E. B. Zhang, Y. Andelkovic, Z. Herfurth, F. Heß, R. Kalinin, A. Kozhuharov, C. Krantz, C. Litvinov, S. Lorentz, B. Spillmann, U. Steck, M. Vorobyev, G. Banaś, D. Fritzsche, S. Lindroth, E. Ma, X. Müller, A. Schuch, R. Surzhykov, A. Trassinelli, M. Ueberholz, K. Weinheimer, C. Stöhlker, Th.
contents	A low-energy storage ring with an ultracold electron cooler has been coupled with a heavy-ion accelerator facilitating high-resolution electron-ion collision spectroscopy of the heaviest few-electron ions. In the present work resonant electron-ion recombination of berylliumlike Pb$^{78+}$ ions was measured in the collision-energy range 9.3-16.5eV and a value of 244.937(30) eV is derived for the Pb$^{78+}$($2s^2\;^1S_0 - 2s\,2p\;^3P_1$) excitation energy. This result agrees with the most recent (less accurate) theoretical value of 244.942(52) eV [Malyshev et al., Physical Review A 110, 062824 (2024)], which has been calculated by applying strong-field QED rigorously up to the second order. The present investigation suggests that further technical improvements can potentially increase the experimental accuracy by an order of magnitude.
format	Preprint
id	arxiv_https___arxiv_org_abs_2502_15433
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Testing strong-field QED to second-order in the highly correlated atomic system berylliumlike Pb78+ by electron-ion recombination spectroscopy Schippers, S. Brandau, C. Fuchs, S. Lestinsky, M. Wang, S. X. Zhang, C. Y. Badnell, N. R. Borovik Jr., A. Fogle, M. Hannen, V. Harman, Z. Hillenbrand, P. -M. Menz, E. B. Zhang, Y. Andelkovic, Z. Herfurth, F. Heß, R. Kalinin, A. Kozhuharov, C. Krantz, C. Litvinov, S. Lorentz, B. Spillmann, U. Steck, M. Vorobyev, G. Banaś, D. Fritzsche, S. Lindroth, E. Ma, X. Müller, A. Schuch, R. Surzhykov, A. Trassinelli, M. Ueberholz, K. Weinheimer, C. Stöhlker, Th. Atomic Physics A low-energy storage ring with an ultracold electron cooler has been coupled with a heavy-ion accelerator facilitating high-resolution electron-ion collision spectroscopy of the heaviest few-electron ions. In the present work resonant electron-ion recombination of berylliumlike Pb$^{78+}$ ions was measured in the collision-energy range 9.3-16.5eV and a value of 244.937(30) eV is derived for the Pb$^{78+}$($2s^2\;^1S_0 - 2s\,2p\;^3P_1$) excitation energy. This result agrees with the most recent (less accurate) theoretical value of 244.942(52) eV [Malyshev et al., Physical Review A 110, 062824 (2024)], which has been calculated by applying strong-field QED rigorously up to the second order. The present investigation suggests that further technical improvements can potentially increase the experimental accuracy by an order of magnitude.
title	Testing strong-field QED to second-order in the highly correlated atomic system berylliumlike Pb78+ by electron-ion recombination spectroscopy
topic	Atomic Physics
url	https://arxiv.org/abs/2502.15433