1995/06/15 by Andrzej Czarnecki, Bernd Krause, William J. Marciano · 10 citations
Computer Science · Mathematics · Physics and Astronomy · #Anomalous magnetic dipole moment #Anomaly (physics) #Computational Physics and Python Applications #Condensed matter physics #Electroweak interaction #Fermion #Loop (graph theory) #Magnetic moment #Mathematics #Moment (physics) #Muon #Nuclear physics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #hep-ph
paper · pdf · doi:10.1103/physrevd.52.r2619
published as Phys.Rev.D52:2619-2623,1995 · Corrected version
arxiv created 1995/06/15 · openalex publication_date 1995/09/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The two-loop electroweak corrections to the anomalous magnetic moment of the muon, generated by fermionic loops, are calculated. An interesting role of the top quark in the anomaly cancellation is observed. New corrections, including terms of order G_\mathrm\ensuremathμ\ensuremathαm_\mathrm\ensuremathμ2mt2/MW2, are computed and a class of diagrams previously thought to vanish are found to be important. The total fermionic correction is -(23\ifmmode±\else\textpm\fi3)\ifmmode×\else\texttimes\fi10^\mathrm\ensuremath-11 which decreases the electroweak effects on g-2, predicted from one-loop calculations, by 12%. We give an updated theoretical prediction for g-2 of the muon.