Leading Twist-Two Gauge-Variant Counterterms
Anomalous dimensions of twist-two operators govern the scale evolution of parton distribution functions. For off-shell external states, the physical twist-two operators mix with unknown gauge-variant operators under renormalization. In this talk, we apply the method proposed by us in~\cite{Gehrmann:2023ksf} to compute all gauge-variant one-loop counterterm Feynman rules with five legs, which enter the determination of the four-loop splitting functions in QCD.
Authors
- Andreas von Manteuffel (ORCID: https://orcid.org/0000-0003-2207-7132)
- Tong-Zhi Yang (ORCID: https://orcid.org/0000-0001-5003-5517)
- Tong-Zhi Yang
Publication Details
- Published
- 2024-09-17
- DOI
- https://doi.org/10.22323/1.467.0087
- Citations
- 1
- Primary Topic
- Real-time simulation and control systems
- Type
- article
- Field-Weighted Citation Impact
- 0.33
Funders
- European Commission