Abstract
We consider the decay of a neutral Higgs boson of arbitrary CP nature to a massive quark antiquark pair at next-to-next-to-leading order in perturbative QCD. Our analysis is made at the differential level using the antenna subtraction framework. We apply our general set-up to the decays of a CP-even and CP-odd heavy Higgs boson to a top-quark top-antiquark pair and to the decay of the 125 GeV Higgs boson to a massive bottom-quark bottom-antiquark pair. In the latter case we calculate, in particular, the two-jet, three-jet, and four-jet decay rates and, for two-jet events, the energy distribution of the leading jet.
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Bernreuther, W., Chen, L. & Si, ZG. Differential decay rates of CP-even and CP-odd Higgs bosons to top and bottom quarks at NNLO QCD. J. High Energ. Phys. 2018, 159 (2018). https://doi.org/10.1007/JHEP07(2018)159
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DOI: https://doi.org/10.1007/JHEP07(2018)159