The gradient flow formulation of the electroweak Hamiltonian

by Dr Fabian Lange (Karlsruher Institut für Technologie (KIT))

Monday 3 Jul 2023, 13:15 → 14:15 Europe/Berlin

1.021 (IRIS)

Flavor observables are usually computed with the help of the electroweak Hamiltonian which separates the perturbative from the non-perturbative regime. The Wilson coefficients are calculated perturbatively, while matrix elements of the operators require non-perturbative treatment, e.g. through lattice simulations. The resulting necessity to compute the transformation between the different renormalization schemes constitutes an important source of uncertainties. I will discuss how the gradient flow formalism potentially provides an elegant solution to this problem. 

HU-Berlin-Zeuthen-lange.pdf