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Fermionic corrections to quark and gluon form factors in four-loop QCD

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arxiv 2105.11504 v1 pith:TYBFF4DS submitted 2021-05-24 hep-ph hep-th

Roman N. Lee , Andreas von Manteuffel , Robert M. Schabinger , Alexander V. Smirnov , Vladimir A. Smirnov , Matthias Steinhauser This is my paper · ORCID
classification hep-phhep-th
keywords formcorrectionsfactorsfour-loopanalyticalanalyticallyanomalouscalculation
verification ladder T0 review T1 audit T2 compute T3 formal
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We analytically compute all four-loop QCD corrections to the photon-quark and Higgs-gluon form factors involving a closed massless fermion loop. Our calculation of non-planar vertex integrals confirms a previous conjecture for the analytical form of the non-fermionic contributions to the collinear anomalous dimensions of quarks and gluons.

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  1. Soft and virtual corrections to semi-inclusive DIS up to four loops in QCD

    hep-ph 2025-06 conditional novelty 6.0 of 10

    A threshold-resummation formalism for SIDIS yields new approximate N3LO and N4LO soft, virtual, and next-to-soft coefficient functions for the diagonal quark channel.

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