A new approach to modelling elastic and inelastic photon-initiated production at the LHC: SuperChic 4

Abstract

We present the results of the new SuperChic 4 Monte Carlo implementation of photon-initiated production in proton-proton collisions, considering as a first example the case of lepton pair production. This is based on the structure function calculation of the underlying process, and focusses on a complete account of the various contributing channels, including the case where a rapidity gap veto is imposed. We provide a careful treatment of the contributions where either (single dissociation), both (double dissociation) or neither (elastic) proton interacts inelastically and dissociates, and interface our results to Pythia for showering and hadronization. The particle decay distribution from dissociation system, as well the survival probability for no additional proton-proton interactions, are both fully accounted for; these are essential for comparing to data where a rapidity gap veto is applied. We present detailed results for the impact of the veto requirement on the differential cross section, compare to and find good agreement with ATLAS 7 TeV data on semi-exclusive production, and provide a new precise evaluation of the background from semi-exclusive lepton pair production to SUSY particle production in compressed mass scenarios, which is found to be low.

19 pages, 5 figures, 1 table. SF formulae updated

References in corpus (10)

• PYTHIA 6.4 Physics and Manual
• An Introduction to PYTHIA 8.2
• How bright is the proton? A precise determination of the photon parton distribution function
• The Photon Content of the Proton
• Central exclusive production within the Durham model: a review
• A fresh look at ALP searches in fixed target experiments
• Exclusive dilepton production in ultraperipheral $PbPb$ collisions at the LHC
• Diffraction and correlations at the LHC: definitions and observables
• Production of axionlike particles in $PbPb$ collisions at the LHC, HE -- LHC and FCC: A phenomenological analysis
• The Proton in High Definition: Revisiting Photon-Initiated Production in High Energy Collisions

Cited by in corpus (49)

• gamma-UPC: Automated generation of exclusive photon-photon processes in ultraperipheral proton and nuclear collisions with varying form factors
• Observation and measurement of forward proton scattering in association with lepton pairs produced via the photon fusion mechanism at ATLAS
• Exclusive $J/\psi$ photoproduction in ultraperipheral Pb+Pb collisions at the LHC to next-to-leading order perturbative QCD
• QED Parton Distribution Functions in the MSHT20 Fit
• Cuts for two-body decays at colliders
• Observation of $\gamma \gamma$ $\to$ $\tau \tau$ in proton-proton collisions and limits on the anomalous electromagnetic moments of the $\tau$ lepton
• Elastic photon-initiated production at the LHC: the role of hadron-hadron interactions
• Observation of photon-induced $W^{+}{W}^{-}$ production in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector
• Study of coherent $J/\psi$ production in lead-lead collisions at $\sqrt{s_{NN}}=5TeV$
• Challenging exclusive top quark pair production at low and high luminosity LHC
• Search for an axion-like particle with forward proton scattering in association with photon pairs at ATLAS
• Light-by-Light Scattering at Next-to-Leading Order in QCD and QED
• Searching for axionlike particles with low masses in $pPb$ and $PbPb$ collisions
• Exciting Ions: a Systematic Treatment of Ultraperipheral Heavy Ion Collisions with Nuclear Breakup
• Exclusive dielectron production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{{}_{\text{NN}}}}=5.02$ TeV with ATLAS
• Physics with Leptons and Photons at the LHC
• A new calculation of semi-exclusive axion-like particle production at the LHC
• Determination of collinear and TMD photon densities using the Parton Branching method
• Measurement of photonuclear jet production in ultra-peripheral Pb+Pb collisions at $\sqrt{s_{\text{NN}}}=5.02$ TeV with the ATLAS detector
• Measurement of muon pairs produced via $\gamma \gamma$ scattering in non-ultraperipheral Pb+Pb collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=5.02$ TeV with the ATLAS detector
• Two-loop massive QCD and QED helicity amplitudes for light-by-light scattering
• Searches for axion-like particles via $\gamma \gamma$ fusion at future ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ colliders
• Exclusive and dissociative J/$\psi$ photoproduction, and exclusive dimuon production, in p$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV
• $pp$ scattering at the LHC with the lepton pair production and one proton tagging
• Modelling $W^{+}{W}^{-}$ production with rapidity gaps at the LHC
• Production of heavy charged particles in proton-proton ultraperipheral collisions at the Large Hadron Collider: survival factor
• Dimuon and ditau production in photon-photon collisions at next-to-leading order in QED
• Forward proton scattering in association with muon pair production via the photon fusion mechanism at the LHC
• Central exclusive production of $W$ boson pairs in $pp$ collisions at the LHC in hadronic and semi-leptonic final states
• Strategy to measure tau $g-2$ via photon fusion in LHC proton collisions
• LHC as a photon-photon collider: bounds on ${\Gamma }_{X\to \gamma \gamma }$
• Exclusive doubly charged Higgs boson pair production in $pp$ collisions at the LHC
• Automated next-to-leading order QCD and electroweak predictions of photon-photon processes in ultraperipheral collisions
• Dilepton production through timelike Compton scattering within the $k_T$-factorization approach
• Non-exclusive particle production by $\gamma \gamma$ interactions in $pp$ collisions at the LHC
• The LHC as an Axion-Photon Collider
• Diffractive and photon-induced production of top quark
• Experimental Review of the Quarkonium Physics at the LHC
• Physics with high-luminosity proton-nucleus collisions at the LHC
• Semiexclusive dilepton production in proton-proton collisions with one forward proton measurement at the LHC
• Effective Field Theory Factorization for Diffraction
• Production of $e^{+}{e}^{-}$ in proton-lead collision: photon-photon fusion
• libepa -- a C++/Python library for calculations of cross sections of ultraperipheral collisions
• Automated event generation for S-wave quarkonium and leptonium production in NRQCD and NRQED
• Measurement and effective field theory interpretation of the photon-fusion production cross section of a pair of W bosons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Factorization of photon induced processes in ultra-peripheral heavy ion collisions
• Upcgen: a Monte Carlo simulation program for dilepton pair production in ultra-peripheral collisions of heavy ions
• Photon and Leptons induced processes at the LHC
• Missing-mass search in forward-proton-tagged dilepton events with the ATLAS detector