Jul 26 – 30, 2021
Europe/Berlin timezone

The Electroweak Hamiltonian in the Gradient Flow Formalism

Jul 30, 2021, 10:15 AM


Parallel session talk QCD and Hadronic Physics T06: QCD and Hadronic Physics


Mr Fabian Lange (KIT & RWTH Aachen University)


Over the last decade, the gradient flow formalism became an important tool for lattice simulations of Quantum Chromodynamics. Most prominently, scale setting strategies based on the gradient flow superseded previous strategies. Moreover, the gradient flow offers remarkable renormalization properties which pave the way for cross-fertilization between perturbative and lattice calculations.
In this talk we introduce the gradient flow formalism and outline the perturbative approach. Employing the flowed operator product expansion, we construct the flowed equivalents of the current-current operators of the electroweak Hamiltonian. They allow for simpler transformations between lattice and perturbative schemes and might reduce the uncertainties of theoretical predictions for low-energy flavor observables.

Email fabian.lange@kit.edu
First author Fabian Lange
Collaboration / Activity no collaboration

Primary authors

Mr Fabian Lange (KIT & RWTH Aachen University) Prof. Robert V. Harlander (RWTH Aachen University)

Presentation materials