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

2024/11/14 by V. I. Korobov, F. A. Martynenko, Korobov, V. I. +5 · 1 citation
Engineering · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Muon and positron interactions and applications

paper · pdf · doi:10.48550/arxiv.2411.09727

openalex publication_date 2024/11/14 · openalex created_date 2024/11/21 · openalex updated_date 2026/07/28

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.

Cited by

• Microwave Spectroscopy of the Muonium 2S_1/2-2P_3/2 Fine Structure Interval

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