Constraining the photon flux in two-photon processes at the LHC

Abstract

In this paper we propose the study of the $W^{+}{W}^{-}$ and ${\mu }^{+}{\mu }^{-}$ production by two-photon interactions in $pp$ collisions at LHC energies to constrain the photon flux associated to an ultrarelativistic proton. We consider the current parametrizations for the photon distribution of the proton and estimate the effective photon - photon luminosities for elastic, semielastic and inelastic processes. Moreover, we present predictions for the rapidity and invariant mass distributions for the two-photon production of $W^{+}{W}^{-}$ and ${\mu }^{+}{\mu }^{-}$ in $\gamma \gamma$ interactions at LHC energies. We demonstrate that the semielastic and inelastic predictions are strongly dependent on the description of the inelastic photon flux, and that the relative contribution of the different processes depends on the invariant mass of the final state. Our results implies that a dedicated experimental analysis of the two-photon production of $W^{+}{W}^{-}$ and ${\mu }^{+}{\mu }^{-}$ with the tagging of one of the protons in the final state can be useful to constrain the magnitude of the inelastic component of the photon distribution.

arXiv comment9 pages, 8 figures. arXiv admin note: text overlap with arXiv:1502.05837

References in corpus (36)

• Parton distributions with QED corrections
• The Physics of Ultraperipheral Collisions at the LHC
• Physics of Ultra-Peripheral Nuclear Collisions
• Coherent gamma-gamma and gamma-A interactions in very peripheral collisions at relativistic ion colliders
• Parton distributions incorporating QED contributions
• Prospects for New Physics observations in diffractive processes at the LHC and Tevatron
• Observing light-by-light scattering at the Large Hadron Collider
• Photon-Photon Physics in Very Peripheral Collisions of Relativistic Heavy Ions
• Electron-Positron Pair Production in Relativistic Heavy Ion Collisions
• Anomalous quartic WWgamma gamma, ZZgamma gamma, and trilinear WWgamma couplings in two-photon processes at high luminosity at the LHC
• The FP420 R&D Project: Higgs and New Physics with forward protons at the LHC
• Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s) = 7 TeV and constraints on anomalous quartic gauge couplings
• Light-by-light scattering with intact protons at the LHC: from Standard Model to New Physics
• Exclusive photon-photon production of muon pairs in proton-proton collisions at sqrt(s) = 7 TeV
• Search for exclusive or semi-exclusive photon pair production and observation of exclusive and semi-exclusive electron pair production in pp collisions at sqrt(s) = 7 TeV
• Probing Quartic Neutral Gauge Boson Couplings using diffractive photon fusion at the LHC
• $\gamma \gamma$ Processes at High Energy pp Colliders
• The photon PDF of the proton
• $\gamma \gamma$ Production of Non--Strongly Interacting SUSY Particles at Hadron Colliders
• The Polarized and Unpolarized Photon Content of the Nucleon
• Exclusive excited leptons search in two lepton final states at the CERN-LHC
• Study of Higgs boson production and its b-bbar decay in gamma-gamma processes in proton-nucleus collisions at the LHC
• Extra dimensions in gamma gamma -> gamma gamma process at the CERN-LHC
• Search for technipions in exclusive production of diphotons with large invariant masses at the LHC
• Central ${\mu }^{+}{\mu }^{-}$ production via photon-photon fusion in proton-proton collisions with proton dissociation
• $W^{+}{W}^{-}$ pair production in proton-proton collisions: small missing terms
• Meson production in two-photon interactions at energies available at CERN Large Hadron Collider
• Large Extra Dimension effects through Light-by-Light Scattering at the CERN LHC
• On the photon constituency of protons
• Photon and Z induced heavy charged lepton pair production at a hadron supercollider
• Hard exclusive two photon processes in QCD
• Exclusive production of heavy charged Higgs boson pairs in the $pp\to pp{H}^{+}{H}^{-}$ reaction at the LHC and a future circular collider
• Probing the dilaton in central exclusive processes at the LHC
• Probing the photon flux in the diffractive quarkonium photoproduction at LHC
• Threshold scans in diffractive W pair production via QED processes at the LHC
• Diffractive $Z$ boson pair production at LHC in the large extra dimensions scenario

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• Bottom production in Photon and Pomeron -- induced interactions at the LHC
• Probing the gluon density of the proton in the exclusive photoproduction of vector mesons at the LHC: A phenomenological analysis
• Charmonium production in ultra-peripheral heavy ion collisions with two-photon processes
• Pinning down the gauge boson couplings in $WW\gamma$ production using forward proton tagging
• Exclusive and diffractive ${\mu }^{+}{\mu }^{-}$ production in $pp$ collisions at the LHC
• Exclusive and semiexclusive production of ${\mu }^{+}{\mu }^{-}$ pairs with $\Delta$ isobars and other resonances in the final state and the size of absorption effects
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