https://doi.org/10.1140/epjc/s10052-017-5435-z
Regular Article - Theoretical Physics
Two-photon exchange correction to the hyperfine splitting in muonic hydrogen
Institut für Kernphysik and PRISMA Cluster of Excellence, Johannes Gutenberg Universität, Mainz, Germany
* e-mail: tomalak@uni-mainz.de
Received:
6
October
2017
Accepted:
29
November
2017
Published online:
12
December
2017
We reevaluate the Zemach, recoil and polarizability corrections to the hyperfine splitting in muonic hydrogen expressing them through the low-energy proton structure constants and obtain the precise values of the Zemach radius and two-photon exchange (TPE) contribution. The uncertainty of TPE correction to S energy levels in muonic hydrogen of 105 ppm exceeds the ppm accuracy level of the forthcoming 1S hyperfine splitting measurements at PSI, J-PARC and RIKEN-RAL.
© The Author(s), 2017
