Gluon-induced WW background to Higgs boson searches at the LHC

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dc.creatorBinoth, T.
dc.creatorCiccolini, M.
dc.creatorKauer, N.
dc.creatorKrämer, M.
dc.date2005-03-10
dc.date.accessioned2026-07-07T10:44:15Z
dc.date.available2026-07-07T10:44:15Z
dc.descriptionVector-boson pair production is an important background for Higgs boson and new physics searches at the Large Hadron Collider LHC. We have calculated the loop-induced gluon-fusion process gg -> WW -> leptons, allowing for arbitrary invariant masses of the intermediate W bosons. This process contributes at O(alpha_s^2) relative to quark-antiquark annihilation, but its importance is enhanced by the large gluon flux at the LHC and by experimental cuts employed in Higgs boson searches. We find that gg -> WW provides only a moderate correction (ca. 5%) to the inclusive W-pair production cross section at the LHC. However, after taking into account realistic experimental cuts, the gluon-fusion process becomes significant and increases the theoretical WW background estimate for Higgs searches in the pp -> H -> WW -> leptons channel by approximately 30%.
dc.description11 pages, LaTeX, 4 figures, uses JHEP3.cls
dc.identifierhttps://arxiv.org/abs/hep-ph/0503094
dc.identifierhttp://arxiv.org/abs/hep-ph/0503094
dc.identifierJHEP0503:065,2005
dc.identifierdoi:10.1088/1126-6708/2005/03/065
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182531
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGluon-induced WW background to Higgs boson searches at the LHC
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