Event
High Energy Theory Seminar: Causality constraints on EFTs
Sera Cremonini (Leigh University)
![An image of Sera Cremonini](/sites/default/files/styles/max_325x325/public/2024-08/Sara_Cremonini_2.jpg?itok=gnuoDpWJ)
I will discuss how causality can be used to place bounds on higher derivative corrections to Einstein Maxwell theory. Scattering probe photons off of charged shock waves, we obtain new constraints on the Wilson coefficients parametrizing higher derivative operators. As we will see, gravity weakens the purely field theoretic bounds. Moreover, in four dimensions subtleties arise from IR divergences which need to be regulated, obscuring the physics.