https://doi.org/10.1140/epja/i2019-12743-1
Letter
Two-photon exchange correction to the Lamb shift and hyperfine splitting of S levels
1
Institut für Kernphysik and PRISMA Cluster of Excellence, Johannes Gutenberg Universität, Mainz, Germany
2
Department of Physics and Astronomy, University of Kentucky, 40506, Lexington, KY, USA
3
Fermilab, 60510, Batavia, IL, USA
* e-mail: tomalak@uni-mainz.de
Received:
10
October
2018
Accepted:
25
March
2019
Published online:
10
May
2019
We evaluate the two-photon exchange corrections to the Lamb shift and hyperfine splitting of S states in electronic hydrogen relying on modern experimental data and present the two-photon exchange on a neutron inside the electronic and muonic atoms. These results are relevant for the precise extraction of the isotope shift as well as in the analysis of the ground state hyperfine splitting in usual and muonic hydrogen.
© The Author(s), 2019
