Higgs Boson Production in Association with a Photon in Vector Boson Fusion at the LHC

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dc.creatorGabrielli, Emidio
dc.creatorMaltoni, Fabio
dc.creatorMele, Barbara
dc.creatorMoretti, Mauro
dc.creatorPiccinini, Fulvio
dc.creatorPittau, Roberto
dc.date2007-02-12
dc.date2007-08-29
dc.date.accessioned2026-07-07T11:59:03Z
dc.date.available2026-07-07T11:59:03Z
dc.descriptionHiggs boson production in association with two forward jets and a central photon at the CERN Large Hadron Collider is analyzed, for the Higgs boson decaying into a b bbar pair in the m_H <= 140 GeV mass region. We study both irreducible and main reducible backgrounds at parton level. Compared to the Higgs production via vector-boson fusion, the request of a further photon at moderate rapidities dramatically enhances the signal/background ratio. Inclusive cross sections for p_T^γ>= 20 GeV can reach a few tens of fb's. After a suitable choice of kinematical cuts, the cross-section ratio for signal and irreducible-background can be enhanced up to >= ~1/10, with a signal cross section of the order of a few fb's, for m_H ~ 120 GeV. The request of a central photon radiation also enhances the relative signal sensitivity to the WWH coupling with respect to the ZZH coupling. Hence, a determination of the cross section for the associated production of a Higgs boson decaying into a b bbar pair plus a central photon in vector-boson fusion could help in constraining the b bbar H coupling, and the WWH coupling as well. A preliminary study of QCD showering effects points to a further significant improvement of the signal detectability over the background.
dc.description30 pages, 8 figures, 8 tables; minor corrections to the text; version appeared in Nuclear Physics B
dc.identifierhttps://arxiv.org/abs/hep-ph/0702119
dc.identifierhttp://arxiv.org/abs/hep-ph/0702119
dc.identifierNucl.Phys.B781:64-84,2007
dc.identifierdoi:10.1016/j.nuclphysb.2007.05.010
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206434
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHiggs Boson Production in Association with a Photon in Vector Boson Fusion at the LHC
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