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Exact quark-mass dependence of the Higgs-photon form factor at three loops in QCD
Journal of High Energy Physics
We follow up on our discussion of the exact quark-mass dependence of the Higgs-gluon form factor at three loops in QCD  and turn our attention to the closely related Higgs-photon form factor. Similarly to our previous work, we intend to examine the form factor for the decay of a Higgs-boson with variable mass into two photons at the three-loop level in QCD. The set of master integrals is known numerically due to prior work on the Higgs-gluon form factor and is exploited to obtain expansionsdoi:10.1007/jhep04(2021)196 fatcat:fwbl6k2hdreevhkfo4g25zw2lu