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arXiv · 1907.06957

The light-fermion contribution to the exact Higgs-gluon form factor in QCD

Robert V. Harlander·Mario Prausa·Johann Usovitsch
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Abstract

An analytical expression for the three-loop form factors for $ggH$ and $\gamma\gamma H$ is derived for the contributions which involve massless quark loops. The result is expressed in terms of harmonic polylogarithms. It fully agrees with previously obtained kinematical expansions, and confirms a recent semi-numerical approximation which extends over the full kinematic range.

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Robert V. Harlander, Mario Prausa, Johann Usovitsch. 2019-07-16. The light-fermion contribution to the exact Higgs-gluon form factor in QCD. https://doi.org/10.1007/jhep10(2019)148

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