2025/04/14 by Martin Hoferichter, Hoferichter, Martin, Peter Stoffer +3 · 3 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions
paper · doi:10.1016/j.physletb.2025.139565
openalex publication_date 2025/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
In Refs. [1] , [2] we provided a complete dispersive evaluation of the hadronic light-by-light (HLbL) contribution to the anomalous magnetic moment of the muon. While the evaluation strategy was developed for the kinematic situation determined by the muon mass, a similar approach also applies to the HLbL corrections to the anomalous magnetic moments of the electron and τ lepton, shifting the sensitivity in the loop integrals to smaller and larger momenta, respectively. In this Letter, we propagate the corresponding uncertainties of the various contributions, obtaining a e HLbL = 3.51 ( 23 ) × 10 − 14 and a τ HLbL = 3.77 ( 29 ) × 10 − 8 .