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Differential decay rates of CP-even and CP-odd Higgs bosons to top and bottom quarks at NNLO QCD

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arxiv 1805.06658 v2 pith:WWY35HRY submitted 2018-05-17 hep-ph hep-ex

Differential decay rates of CP-even and CP-odd Higgs bosons to top and bottom quarks at NNLO QCD

Werner Bernreuther , Long Chen , Zong-Guo Si This is my paper
classification hep-ph hep-ex
keywords decayhiggsbosonpaircp-evencp-odddifferentialmassive
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Higgs boson decay to massive bottom quarks at order $\alpha_s^4$ induced by top-quark Yukawa couplings

    hep-ph 2026-03 accept novelty 7.0

    The O(α_s^4) top-Yukawa-induced correction to H→bb is computed analytically, increasing the width by 0.4% and lowering scale uncertainty to 0.4%.