Work

Leading Twist-Two Gauge-Variant Counterterms

Year: 2024

Type: conference-paper

Abstract: 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.

Source: Loops and Legs in Quantum Field Theory (LL)

DOI: 10.22323/1.467.0087

Authors: Tongzhi Yang, Andreas von Manteuffel, Tong-Zhi Yang

Institutions: University of Zurich, University of Regensburg

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: European Commission

Award: G2124226988