A next-to-leading order study of photon-pion and pion pair hadro-production in the light of the Higgs boson search at the LHC

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dc.creatorBinoth, T.
dc.creatorGuillet, J. P.
dc.creatorPilon, E.
dc.creatorWerlen, M.
dc.date2002-03-06
dc.date2002-05-09
dc.date.accessioned2026-07-07T03:46:37Z
dc.date.available2026-07-07T03:46:37Z
dc.descriptionWe discuss the production of photon-pion and pion pairs with a large invariant mass at collider energies. We present a study based on a perturbative QCD calculation at full next-to-leading order accuracy, implemented in the computer programme DIPHOX. We give estimations for various observables, which concern the reducible background to the Higgs boson search in the channel H --> gamma gamma, in the mass range 80-140 GeV at the LHC. We critically discuss the reliability of these estimates due to our imperfect knowledge of fragmentation functions at high z and a subtle interplay between higher order corrections and realistic experimental cuts. We conclude that, whereas the invariant mass spectrum of photon-pion pairs is theoretically better under control, in the dipion case large uncertainties remain.
dc.description26 pages Latex, 14 eps figures, replaced by published version
dc.identifierhttps://arxiv.org/abs/hep-ph/0203064
dc.identifierhttp://arxiv.org/abs/hep-ph/0203064
dc.identifierEur.Phys.J.direct C4 (2002) 7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/41358
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleA next-to-leading order study of photon-pion and pion pair hadro-production in the light of the Higgs boson search at the LHC
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