Apr 15 – 17, 2020
Universidad de Granada
Europe/Zurich timezone

Ward Identities for the Standard Model Effective Field Theory

Apr 15, 2020, 5:00 PM


Andreas Helset (Niels Bohr Institute)


We derive Ward identities for the standard model effective field theory using the background-field method. The resulting symmetry constraints on the standard model effective field theory are basis independent, and constrain the perturbative and power-counting expansions. A geometric description of the field connections, and real representations for the SU(2)L×U(1)Y generators, underlies the derivation.

Presentation materials