English

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

High Energy Physics - Phenomenology 2021-10-20 v1 High Energy Physics - Theory
Authors: Roman N. Lee , Andreas von Manteuffel , Robert M. Schabinger , Alexander V. Smirnov , Vladimir A. Smirnov , Matthias Steinhauser
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Abstract

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.

Keywords

qcd form factors four-loop fermionic corrections quark gluon anomalous dimensions

Cite

@article{arxiv.2105.11504,
  title  = {Fermionic corrections to quark and gluon form factors in four-loop QCD},
  author = {Roman N. Lee and Andreas von Manteuffel and Robert M. Schabinger and Alexander V. Smirnov and Vladimir A. Smirnov and Matthias Steinhauser},
  journal= {arXiv preprint arXiv:2105.11504},
  year   = {2021}
}

Comments

7 pages, 1 figure

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