Muon loop light-by-light contribution to hyperfine splitting in muonium.
Three-loop corrections to hyperfine splitting in muonium, generated by the gauge-invariant sets of diagrams with muon and tauon loop light-by-light scattering blocks, are calculated. These results complete calculations of all light-by-light scattering contributions to hyperfine splitting in muonium.
Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA and Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg 188300, Russia.
Michael I
MI
Eides
D. I. Mendeleyev Institute for Metrology, St. Petersburg 190005, Russia.
Valery A
VA
Shelyuto