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Fully Differential Higgs Boson Production to Third Order in QCD
X Chen1,2,3, T Gehrmann1, E W N Glover4
1Department of Physics, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland.
Abstract:
We present the first fully differential predictions for the production cross section of a Higgs boson via the gluon fusion mechanism at next-to-next-to-next-to-leading order (N^{3}LO) in QCD perturbation theory. Differential distributions are shown for the two-photon final state produced by the decay of the Higgs boson for a realistic set of fiducial cuts. The N^{3}LO corrections exhibit complex features and are in part larger than the inclusive N^{3}LO corrections to the production cross section. Overall, we observe that the inclusion of the N^{3}LO QCD corrections significantly reduces the perturbative uncertainties and leads to a stabilization of the perturbative expansion.
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