Volume 544 -
43rd International Conference on High Energy Physics
(ICHEP2026) -
Session New Developments in Quantum Field Theory, String Theory and Quantum Information in HEP
New results for the 4-loop massive cusp anomalous dimension
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Abstract
I present new results for the massive cusp anomalous dimension at four loops in QCD. I combine partial exact and conjectured analytical expressions with an approximation that is based on the asymptotic behavior of the cusp anomalous dimension to produce the newest estimates. Detailed comparisons are made with previous approximate results that highlight the robustness of the calculational approach.
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.