Two-photon exchange correction to the hyperfine splitting in muonic hydrogen
arXiv:1708.02509 · doi:10.1140/epjc/s10052-017-5435-z
Abstract
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.
17 pages, 4 figures, version published in Eur. Phys. J. C, 77, no. 12, 858 (2017)
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