1pm-2pm: Hadronic vacuum polarization to three loops in chiral perturbation theory
1pm-2pm: Hadronic vacuum polarization to three loops in chiral perturbation theory
- Event time: 12:30pm until 2:30pm
- Event date: 19th November 2025
- Speaker: Pierre Vanhove (IPhT Saclay)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
In this talk we will report on the analytic evaluation of the hadronic vacuum polarisation in two-flavor chiral perturbation theory to three loops [arXiv:2510.12885] that's relevant for the calculation of the anomalous magnetic moment of the muon and electron. The three-loop amplitude gets contributions from polylogarithms and six elliptic master integrals, all derivable from the single-mass two-point sunset integral via differentiation or integration. Our result is intended to serve as a starting point for phenomenological studies, as well as the computation of finite-volume corrections in lattice QCD.
Based on work in progress with Laurent Lellouch, Alessandro Lupo, Mattias Sjö and Kálmán Szabo
About Particle Physics Theory seminars
The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..