Conveners
Geometry / Matching
- Andreas Helset (CERN)
Gauthier Durieux
(CP3 - UCLouvain)
03/06/2025, 09:30
The matching of UV models on their low-energy EFT can be obtained from a dispersion relation, analogous to the one leading to positivity constraints but generalised beyond four-point amplitudes. Introduced in 2308.00035, this method is distinct from those based on the (functional) effective action and on (off- or on-shell) amplitudes. It takes cut amplitudes as input. In particular, one-loop...