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arXiv · 2201.08618

Effective electroweak Hamiltonian in the gradient-flow formalism

Robert V. Harlander·Fabian Lange
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Abstract

The effective electroweak Hamiltonian in the gradient-flow formalism is constructed for the current-current operators through next-to-next-to-leading order QCD. The results are presented for two common choices of the operator basis. This paves the way for a consistent matching of perturbatively evaluated Wilson coefficients and non-perturbative matrix elements evaluated by lattice simulations.

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Robert V. Harlander, Fabian Lange. 2023-03-13. Effective electroweak Hamiltonian in the gradient-flow formalism. https://doi.org/10.1103/physrevd.105.l071504

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