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arXiv · 2411.09727

Hadronic light-by-light scattering contribution to 1S-2S transition in muonium

V. I. Korobov·F. A. Martynenko·A. P. Martynenko·A. V. Eskin
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Abstract

We study hadronic light-by-light scattering contribution to the energy interval (1S-2S) in muonium. Various amplitudes of interaction of a muon and an electron are constructed, in which the effect of hadronic scattering of light-by-light is determined using the transition form factor of two photons into a meson. Their contributions to the particle interaction operator in the case of S-states are obtained in integral form, and to the energy spectrum in numerical form. The contributions of pseudoscalar, scalar, axial vector mesons are taken into account.

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V. I. Korobov, F. A. Martynenko, A. P. Martynenko, A. V. Eskin. 2024-11-14. Hadronic light-by-light scattering contribution to 1S-2S transition in muonium. https://arxiv.org/abs/2411.09727

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