Ponente
Jérémie Quevillon
(King's College London)
Descripción
If the Physics Beyond the Standard Model is decoupled at higher energies, the Standard Model as an effective field theory, the SM EFT, is a pertinent framework for phenomenology. The BSM effects on observables are parametrized by the Wilson coefficients of dimension-6 operators, and bounds on their values can be placed from a global fit to experimental measurements.
Integrating out heavy particles at one-loop to obtain expressions for the Wilson coefficients is now also simplified by the use of our universal one-loop effective action. We show how the one-loop effective action obtained from the path integral Covariant Derivative Expansion method can be written in a universal closed form. This result has general applicability beyond the SM EFT and can be used for integrating out any UV theory to obtain a low-energy EFT.
Autor primario
Jérémie Quevillon
(King's College London)
Coautores
Prof.
John Ellis
(King's College London)
Dr.
Tevong You
(University of Cambridge)
