gamma-UPC: Automated generation of exclusive photon-photon processes in ultraperipheral proton and nuclear collisions with varying form factors

Abstract

The automated generation of arbitrary exclusive final states produced via photon fusion in ultraperipheral high-energy collisions of protons and/or nuclei is implemented in the MadGraph5_aMC@NLO and HelacOnia Monte Carlo codes. Cross sections are calculated in the equivalent photon approximation using $\gamma$ fluxes derived from electric dipole and charge form factors, and incorporating hadronic survival probabilities. Multiple examples of $\gamma \gamma$ cross sections computed with this setup, named gamma-UPC, are presented for proton-proton, proton-nucleus, and nucleus-nucleus ultraperipheral collisions (UPCs) at the Large Hadron Collider and Future Circular Collider. Total photon-fusion cross sections for the exclusive production of spin-0,2 resonances (quarkonia, ditauonium, and Higgs boson; as well as axions and gravitons), and for pairs of particles ($J/\psi J/\psi$, WW, ZZ, Z$\gamma$, $t\bar{t}$, HH) are presented. Differential cross sections for exclusive dileptons and light-by-light scattering are compared to LHC data. This development paves the way for the upcoming automatic event generation of any UPC final state with electroweak corrections at next-to-leading-order accuracy and beyond.

31 pages, 34 plots. Minimal changes. Version to appear in JHEP. Code downloadable at http://cern.ch/hshao/gammaupc.html

References in corpus (34)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The Physics of Ultraperipheral Collisions at the LHC
• A standard format for Les Houches Event Files
• How bright is the proton? A precise determination of the photon parton distribution function
• Measurement of the total cross section from elastic scattering in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report
• Heavy Majorana Neutrinos from $W\gamma$ Fusion at Hadron Colliders
• Magnetic monopole search with the full MoEDAL trapping detector in 13 TeV $pp$ collisions interpreted in photon-fusion and Drell-Yan production
• The Effective Vector Boson Approximation in High-Energy Muon Collisions
• Measurement of the exclusive $\gamma \gamma \to {\mu }^{+}{\mu }^{-}$ process in proton--proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Probing Doubly Charged Higgs Bosons at the LHC through Photon Initiated Processes
• Standard candle central exclusive processes at the Tevatron and LHC
• Possibility of Determining $\tau$ Lepton Electromagnetic Moments in $\gamma \gamma \to {\tau }^{+}{\tau }^{-}$ Process at the CERN-LHC
• Sensitivity to anomalous quartic gauge couplings in photon-photon interactions at the LHC
• NRQCD matrix elements for S-wave bottomonia and Gamma[eta_b(nS) -> gamma gamma] with relativistic corrections
• Generalized parton distributions and rapidity gap survival in exclusive diffractive pp scattering
• Fully-heavy tetraquark production by $\gamma \gamma$ interactions in hadronic collisions at the LHC
• Lepton-Flavor-Violating ALPs at the Electron-Ion Collider: A Golden Opportunity
• Opportunities for new physics searches with heavy ions at colliders
• The photon PDF within the CT18 global analysis
• FPMC: a generator for forward physics
• Elastic photon-initiated production at the LHC: the role of hadron-hadron interactions
• A Reduced basis for CP violation in SMEFT at colliders and its application to Diboson production
• Exclusive production of double $J/\psi$ mesons in hadronic collisions
• Collider constraints on axion-like particles
• Searching for axionlike particles with low masses in $pPb$ and $PbPb$ collisions
• Hard exclusive two photon processes in QCD
• Charmonium production in ultra-peripheral heavy ion collisions with two-photon processes
• Ditauonium spectroscopy
• The CMS Precision Proton Spectrometer at the HL-LHC -- Expression of Interest
• Modelling $W^{+}{W}^{-}$ production with rapidity gaps at the LHC
• Associated production of graviton with $e^{+}{e}^{-}$ pair via photon-photon collisions at a linear collider
• New opportunities at the photon energy frontier
• High-energy photon collisions at the LHC - dream or reality?

Cited by in corpus (35)

• Quantum tops at circular lepton colliders
• Overview of high-density QCD studies with the CMS experiment at the LHC
• Observation of $\gamma \gamma$ $\to$ $\tau \tau$ in proton-proton collisions and limits on the anomalous electromagnetic moments of the $\tau$ lepton
• Opportunities for new physics searches with heavy ions at colliders
• Rare and exclusive few-body decays of the Higgs, Z, W bosons, and the top quark
• Light-by-Light Scattering at Next-to-Leading Order in QCD and QED
• Energy Dependence of the Breit-Wheeler process in Heavy-Ion Collisions and its Application to Nuclear Charge Radius Measurements
• Exciting Ions: a Systematic Treatment of Ultraperipheral Heavy Ion Collisions with Nuclear Breakup
• A new calculation of semi-exclusive axion-like particle production at the LHC
• Search for magnetic monopole pair production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{{}_{\text{NN}}}}=5.36$ TeV with the ATLAS detector at the LHC
• 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
• $pp$ scattering at the LHC with the lepton pair production and one proton tagging
• Search for high-mass exclusive $\gamma \gamma$ $\to$ WW and $\gamma \gamma$ $\to$ ZZ production in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Dimuon and ditau production in photon-photon collisions at next-to-leading order in QED
• Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Exclusive photon-fusion production of even-spin resonances and exotic QED atoms in high-energy hadron collisions
• Strategy to measure tau $g-2$ via photon fusion in LHC proton collisions
• Azimuthal decorrelation for photon induced dijet production in ultra-peripheral collisions of heavy ions
• Automated next-to-leading order QCD and electroweak predictions of photon-photon processes in ultraperipheral collisions
• Production of true para-muonium in linearly polarized photon fusions
• The LHC as an Axion-Photon Collider
• Photoproduction of lepton pair in ultra-relativistic heavy-ion collisions
• Diffractive and photon-induced production of top quark
• Search for central exclusive production of top quark pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV with tagged protons
• libepa -- a C++/Python library for calculations of cross sections of ultraperipheral collisions
• Two-loop form factors for $P$-wave quarkonium production and decay
• Production of Tensor Glueball in Ultraperipheral $pp$, $AuAu$ and $PbPb$ Collisions
• Exclusive process $\gamma \gamma \to J/\psi +\gamma$ production in ultraperipheral proton and nuclear collisions at the HL-LHC and FCC
• Pseudoscalar heavy quarkonium production in heavy ion ultraperipheral collision
• NNLO QCD corrections to $\gamma \gamma \to Q\bar{Q}$ from Local Unitarity combined with Coulomb resummation and NLO EW effects
• Automated event generation for S-wave quarkonium and leptonium production in NRQCD and NRQED
• Rescattering effects on spin-interference for ${\rho }^0$ photoproduction in heavy-ion collisions
• 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
• Study $\gamma \gamma \to {\tau }^{+}{\tau }^{-}$ process including ${\tau }^{+}{\tau }^{-}$ spin information in Pb-Pb ultraperipheral collision and at Lepton collider