The four-loop non-singlet splitting functions

7 May 2026, 10:00
20m
Sala IMPERIALE A, First Floor (Hotel Carlton)

Sala IMPERIALE A, First Floor

Hotel Carlton

Talk WG1 Structure Functions and Parton Densities WG1 Structure functions and parton densities

Speaker

Vasily Sotnikov (University of Zurich)

Description

Complete N3LO predictions require knowledge of the splitting functions at four loops. In this talk, I discuss our calculation of the four-loop non-singlet splitting functions from off-shell operator matrix elements. We obtain complete results with exact x-dependence for all non-singlet splitting functions and extract the virtual and rapidity anomalous dimensions in analytical form.

Speaker confirmation Yes

Authors

Andreas von Manteuffel (Universität Regensburg) Thomas Gehrmann (Universität Zürich) Tongzhi Yang Vasily Sotnikov (University of Zurich)

Presentation materials