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Applications of the Perturbative Gradient Flow

by Fabian Lange

Submission summary

As Contributors: Fabian Lange
Arxiv Link: (pdf)
Date submitted: 2021-10-15 15:33
Submitted by: Lange, Fabian
Submitted to: SciPost Physics Proceedings
Proceedings issue: RADCOR 2021 (15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology)
Academic field: Physics
  • High-Energy Physics - Phenomenology


Over the last decade the gradient flow formalism became 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 discuss the perturbative approach. As first application we compute vacuum expectation values of flowed operators which could help to extract parameters like the strong coupling constant from lattice simulations. Afterwards, we apply the flowed operator product expansion to the time-ordered product of two currents which could be employed for an alternative first-principle evaluation of vacuum polarization functions on the lattice.

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Submission 2110.06854v1 on 15 October 2021

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Anonymous on 2021-11-01  [id 1897]

The article reports on the work presented at RADCOR/LoopFest 2021. It fulfils all the requirements for publication in SciPost Proceedings and therefore we recommend its publication.