PoS - Proceedings of Science
Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T06: QCD and Hadronic Physics
The electroweak Hamiltonian in the gradient flow formalism
R.V. Harlander and F. Lange*
Full text: Not available
Abstract
Over the last decade the gradient flow formalism has become an
important tool for lattice simulations of Quantum Chromodynamics. It
offers remarkable renormalization properties which pave the way for
cross-fertilization between perturbative and lattice calculations. In
this contribution we report on the construction of the flowed operator
product expansion for the current-current operators of the electroweak
Hamiltonian at NNLO QCD. This allows for simpler transformations
between lattice and perturbative schemes and might reduce the
uncertainties of theoretical predictions for low-energy flavor
observables.
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