LHC prospects in searches for neutral scalars in pp\toγγ+jet: SM Higgs boson, radion, sgoldstino

Abstract

At hadron colliders the $\gamma \gamma +jet$ channel provides larger signal-to-background ratio in comparison with inclusive $\gamma \gamma$ channel in hunting for scalars uncharged under the SM gauge group. At NLO in QCD perturbation theory we evaluate selfconsistently the signal significance for the SM Higgs boson production in $\gamma \gamma +jet$ channel at LHC. Three-body final state kinematics allows for refined cuts. The adjustment of these cuts increases the signal significance upto the level of inclusive channel. Applying a justified simple rescaling procedure to the results obtained for SM Higgs boson, we estimate the LHC prospects in searches for radion and sgoldstino in $\gamma \gamma +jet$ channel. We have found that this channel is comparable with $\gamma \gamma$ channel in searches for new physics and deserves further detailed investigations.

15 pages, 4 figures, 5 tables

References in corpus (7)

• Large and infinite extra dimensions
• Next-to-leading order jet distributions for Higgs boson production via weak-boson fusion
• Isolating a light Higgs boson from the di-photon background at the LHC
• Kinematical Limits on Higgs Boson Production via Gluon Fusion in Association with Jets
• QCD radiative corrections to prompt diphoton production in association with a jet at hadron colliders
• Prospects for sgoldstino search at the LHC
• Search for the sgoldstino at sqrt(s) from 189 to 202 GeV

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• Low Scale Supersymmetry Breaking and its LHC Signatures
• Photophilic Higgs from sgoldstino mixing
• The MSSM Higgs Sector with a Dynamical Goldstino Supermultiplet
• Liberating Higgs couplings in supersymmetry
• Sgoldstino-Higgs mixing in models with low-scale supersymmetry breaking
• Constraints on radion in a warped extra dimension model from Higgs boson searches at the LHC
• Monophoton signals in light gravitino production at $e^{+}{e}^{-}$ colliders
• Lepton flavor-violating decays of the Higgs boson from sgoldstino mixing
• Gravitational waves from first-order electroweak phase transition in a model with light sgoldstinos
• ${\bar{B}}_s\to {\mu }^{+}{\mu }^{-}$ decay in the Randall-Sundrum model