K. Chetyrkin

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19942025

most citedFive-Loop Running of the QCD coupling constant

573 citations · 1.2k across the 12 of their papers we have counts for

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hep-ph2025

A simple generalization of the low-energy theorem for the effective Higgs-gluon-gluon coupling for the case of simultaneous decoupling of several heavy quarks

Konstantin G. Chetyrkin

We extend in an extremely simple and straightforward way the well-known low-energy theorem for an effective Higgs-like scalar-gluon-gluon coupling [1] (as well as a similar one for…

hep-ph2025

The $γ^{} \to η γ$ and $γ^{} \to η^{'} γ$ form factors to NNLO accuracy in perturbative QCD

V. M. Braun, K. G. Chetyrkin, A. N. Manashov

We use conformal symmetry to calculate the NNLO anomalous dimension matrix (three loops) for flavor-singlet axial-vector QCD operators for spin $N \leq 8$ from a set of gauge-invari…

A simple generalization of the low-energy theorem for the effective Higgs-gluon-gluon coupling for the case of simultaneous decoupling of several heavy quarks

The γ∗→ηγ and γ∗→η′γ form factors to NNLO accuracy in perturbative QCD

The $γ^{} \to η γ$ and $γ^{} \to η^{'} γ$ form factors to NNLO accuracy in perturbative QCD