| Preprint | |
| 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) |
Zapis kreiran 2024-05-16, zadnja izmjena 2024-11-05
