A practical guide to event generation for prompt photon production

Abstract

The production of prompt photons is one of the most relevant scattering processes studied at hadron-hadron colliders in recent years. This article will give an overview of the different approaches used to simulate prompt photon production in the Sherpa event generator framework. Special emphasis is placed on a complete simulation of this process including fragmentation configurations. As a novel application a merged simulation of $\gamma \gamma$ and $\gamma \gamma +$jet production at NLO accuracy is presented and compared to measurements from the ATLAS experiment.

16 pages, 6 figures

References in corpus (15)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Event generation with SHERPA 1.1
• Parton distributions in the LHC era: MMHT 2014 PDFs
• A parton shower algorithm based on Catani-Seymour dipole factorisation
• A new critical study of photon production in hadronic collisions
• Predictions for diphoton production at the LHC through NNLO in QCD
• Polarized QED splittings of massive fermions and dipole subtraction for non-collinear-safe observables
• Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search
• Reweighting QCD matrix-element and parton-shower calculations
• A modified CKKW matrix element merging approach to angular-ordered parton showers
• Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at sqrt(s) = 7 TeV
• Photon - Jet Correlations and Constraints on Fragmentation Functions
• Measurement of the cross section for prompt isolated diphoton production using the full CDF Run II data sample
• Consistent simulation of non-resonant diphoton production in hadron collisions including associated jet production up to two jets

Cited by in corpus (35)

• Event Generation with Sherpa 2.2
• Search for new phenomena in high-mass diphoton final states using 37 fb${}^{-1}$ of proton-proton collisions collected at $\sqrt{s}=13$ TeV with the ATLAS detector
• Event Generators for High-Energy Physics Experiments
• Isolated photon production in association with a jet pair through next-to-next-to-leading order in QCD
• Measurement of the properties of Higgs boson production at $\sqrt{s}=13$ TeV in the $H\to \gamma \gamma$ channel using $139$ fb${}^{-1}$ of $pp$ collision data with the ATLAS experiment
• Les Houches 2021: Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Measurement of the cross section for isolated-photon plus jet production in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector
• Measurements of integrated and differential cross sections for isolated photon pair production in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Precise predictions for photon pair production matched to parton showers in GENEVA
• Photon Fragmentation in the Antenna Subtraction Formalism
• Measurements of the Higgs boson inclusive and differential fiducial cross-sections in the diphoton decay channel with $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Scale and isolation sensitivity of diphoton distributions at the LHC
• Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 TeV with the ATLAS detector
• Measurement of the production cross section of pairs of isolated photons in $pp$ collisions at 13 TeV with the ATLAS detector
• Comparison of inclusive and photon-tagged jet suppression in 5.02 TeV Pb+Pb collisions with ATLAS
• Measurement of the inclusive isolated-photon cross section in $pp$ collisions at $\sqrt{s}=13$ TeV using 36 fb${}^{-1}$ of ATLAS data
• Measurement of differential cross sections of isolated-photon plus heavy-flavour jet production in pp collisions at $\sqrt{s}=8$ TeV using the ATLAS detector
• Isolated photon and photon+jet production at NNLO QCD accuracy
• Prompt photon production and photon-jet correlations at the LHC
• Search for non-resonant Higgs boson pair production in final states with leptons, taus, and photons in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Inclusive-photon production and its dependence on photon isolation in $pp$ collisions at $\sqrt{s}=13$ TeV using 139 fb${}^{-1}$ of ATLAS data
• Search for diphoton resonances in the 66 to 110 GeV mass range using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Vector Bosons and Jets in Proton Collisions
• Model-independent search for the presence of new physics in events including $H\to \gamma \gamma$ with $\sqrt{s}$ = 13 TeV pp data recorded by the ATLAS detector at the LHC
• The $pp\to W(\to l\nu )+\gamma$ process at next-to-next-to-leading order
• Single Photon Production at Hadron Colliders at NNLO QCD with Realistic Photon Isolation
• Measurement of isolated-photon plus two-jet production in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Probing nuclear modifications of parton distribution functions through the isolated prompt photon production at the LHC
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• QCD anatomy of photon isolation
• Differential cross-sections for events with missing transverse momentum and jets measured with the ATLAS detector in 13 TeV proton-proton collisions
• NLO QCD predictions for $\mathbf{t}\bar{\mathbf{t}}\mathbf{\gamma }$ with realistic photon isolation
• Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for pair-produced higgsinos decaying via Higgs or $Z$ bosons to final states containing a pair of photons and a pair of $b$-jets with the ATLAS detector
• Reconstruction and identification of pairs of collimated $\tau$-leptons decaying hadronically using $\sqrt{s}=13$ TeV $pp$ collision data with the ATLAS detector