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2014

The $n_{f}$ terms of the three-loop cusp anomalous dimension in QCD

Grozin, Andrey, Henn, Johannes M., Korchemsky, Gregory P. et al.

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In this talk we present the result for the $n_f$ dependent piece of the three-loop cusp anomalous dimension in QCD.

Remarkably, it is parametrized by the same simple functions appearing in analogous anomalous dimensions in ${\mathcal N}=4$ SYM at one and two loops.
We also compute all required master integrals using a recently proposed refinement of the differential equation method.
The analytic results are expressed in terms of harmonic polylogarithms of uniform weight.

The $n_{f}$ terms of the three-loop cusp anomalous dimension in QCD · Around

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