Higgs Production Cross Sections times Branching Ratios

Input

• NLO Cross sections and Higgs branching ratios from John Conway's files: cross sections, branching ratios 1, 2.
• k-Factors to NNLO/NNLL are taken from the cross sections that are used for the D0/CDF combinations. For WH and ZH these are constant factors (0.96 and 0.99, resp.), for gluon fusion a Higgs-mass dependent k-factor has been derived (ignoring the 155 GeV point, which was incorrectly copied from the original reference).
• W/Z branching ratios: Br(W→lν) = 0.108, Br(Z→ll) = 0.033658, Br(Z→νν) = 0.2 (PDG)
• The figures are for a single lepton flavour: to get the corresponding numbers for the sum of electron and muon final states (not including taus), multiply the qq → WH → lνbb by two, the qq → ZH → llbb result by two and the gg → H → WW → lνlν result by four. The qq → ZH → ννbb numbers already account for the three neutrino flavours, because we cannot distinguish those.

Result

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The numbers that went into these graphs:

• qq → WH → lνbb
• qq → ZH → llbb
• qq → ZH → ννbb
• gg → H → WW → lνlν