The light-fermion contribution to the exact Higgs-gluon form factor in QCD
Abstract
An analytical expression for the three-loop form factors for ggH and γγ 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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