NNLO QCD predictions for the H -> WW -> l l nu nu signal at the LHC

Details NNLO QCD predictions for the H -> WW -> l l nu nu signal at the LHC NNLO QCD predictions for the H -> WW -> l l nu nu signal at the LHC

2007-07-16

arxiv.org/abs/0707.2373v3

JHEP0709:018,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

typos corrected, version accepted in JHEP

Scientific paper

10.1088/1126-6708/2007/09/018

We present a first computation of the NNLO QCD cross section at the LHC for the production of four leptons from a Higgs boson decaying into W bosons. We study the cross section for a Higgs boson mass Mh = 165 GeV; around this value a Standard Model Higgs boson decays almost exclusively into W-pairs. We apply all nominal experimental cuts on the final state leptons and the associated jet activity and study the magnitude of higher-order effects up to NNLO on all kinematic variables which are constrained by experimental cuts. We find that the magnitude of the higher-order corrections varies significantly with the signal selection cuts. As a main result we give the value of the cross section at NNLO with all selection cuts envisaged for the search for the Higgs boson.

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