Diffractive di-jet production at the LHC with a Reggeon contribution

Abstract

We study hard diffractive scattering in hadron-hadron collisions including, on top of the standard Pomeron-initiated processes, contributions due to the exchange of Reggeons. Using a simple model to describe the parton content of the Reggeon, we compute di-jet production in single diffractive and central diffractive events. We show that Reggeon contributions can be sizable at the LHC, and even sometimes dominant, and we identify kinematic windows in which they could be experimentally studied. We argue that suitable measurements must be performed in order to properly constrain the model, and be able to correctly account for Reggeon exchanges in the analysis of the many hard diffractive observables to be measured at the LHC.

arXiv comment8 pages, 6 figures, version to be published in PLB

References in corpus (22)

• FastJet user manual
• Proof of Factorization for Diffractive Hard Scattering
• Measurement and QCD Analysis of the Diffractive Deep-Inelastic Scattering Cross Section at HERA
• Can the Higgs be seen in rapidity gap events at the Tevatron or the LHC?
• Diffractive Deep-Inelastic Scattering with a Leading Proton at HERA
• Probabilities of rapidity gaps in high energy interactions
• Rapidity gap cross sections measured with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV
• Elastic scattering and Diffractive dissociation in the light of LHC data
• A comprehensive model of soft interactions in the LHC era
• Generalized parton distributions and rapidity gap survival in exclusive diffractive pp scattering
• Dijet production in $\sqrt{s}=7$ TeV $pp$ collisions with large rapidity gaps at the ATLAS experiment
• Total cross-section and rapidity gap survival probability at the LHC through an eikonal with soft gluon resummation
• Exclusive Higgs boson production at the LHC: hard rescattering corrections
• Early LHC measurements to check predictions for central exclusive production
• Survival probability of large rapidity gaps in a QCD model with a dynamical infrared mass scale
• Search for exclusive events using the dijet mass fraction at the Tevatron
• Probing the Pomeron structure using dijets and $\gamma$+jet events at the LHC
• Survival probability of large rapidity gaps in QCD and N=4 SYM motivated model
• Single- and central-diffractive production of open charm and bottom mesons at the LHC: theoretical predictions and experimental capabilities
• Gaps between jets in double-Pomeron-exchange processes at the LHC
• Prompt photon production in double-Pomeron-exchange events at the LHC
• Hard hadronic diffraction is not hard

Cited by in corpus (6)

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• Exclusive and diffractive ${\mu }^{+}{\mu }^{-}$ production in $pp$ collisions at the LHC
• Hard diffractive ${\eta }_{\mathrm{c},\mathrm{b}}$ hadroproduction at the LHC
• Inclusive diffractive ${\eta }_{\mathrm{c}}$ production in pp, pA and AA modes at the LHC
• Probing the diffractive production of gauge bosons at forward rapidities
• Diffractive gauge boson production at the LHC as a probe of the flavour content of the Pomeron