Report number
| arXiv:2405.08750 ; CERN-TH-2024-059 |
Title
| Lepton-Pair Scattering With an Off-Shell and an On-Shell Photon at Two Loops in Massless QED |
Author(s)
| Zoia, Simone (CERN) |
Imprint
| 2024-05-14 |
Number of pages
| 4 |
Note
| 4 pages, 3 figures, contribution to the 2024 QCD session of the 58th
Rencontres de Moriond |
Presented at
| 58th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 31 Mar - 7 Apr 2024, pp. |
Subject category
| hep-th ; Particle Physics - Theory ; hep-ph ; Particle Physics - Phenomenology |
Abstract
| I present the computation of the two-loop amplitudes for the scattering of a lepton pair with an off-shell and an on-shell photon in massless QED. We apply modern techniques developed to tackle QCD amplitudes with many scales: we express the Feynman integrals in terms of a basis of special functions, and reconstruct the amplitudes from numerical finite-field evaluations. Our results complete the amplitude-level ingredients for the N3LO predictions of electron-muon scattering needed to meet the precision target of the future MUonE experiment. |
Other source
| Inspire |
Copyright/License
| preprint: (License: CC BY 4.0) |