Photon Fragmentation in the Antenna Subtraction Formalism

Abstract

The theoretical description of photon production at particle colliders combines direct photon radiation and fragmentation processes, which can not be separated from each other for definitions of photon isolation used in experimental measurements. The theoretical description of these processes must account for collinear parton-photon configurations, retaining the dependence on the photon momentum fraction, and includes the parton-to-photon fragmentation functions. We extend the antenna subtraction method to include photon fragmentation processes up to next-to-next-to-leading order (NNLO) in QCD. Collinear photon radiation is handled using newly introduced fragmentation antenna functions and associated phase space mappings. We derive the integrated forms of the fragmentation antenna functions and describe their interplay with the mass factorisation of the photon fragmentation functions. The construction principles of antenna subtraction terms up to NNLO for identified photons are outlined, thereby enabling the application of the method to different photon production processes at colliders.

arXiv comment47 pages, 1 figure, 1 table, two ancillary files with the expressions for the NNLO fragmentation antenna functions enclosed, typos corrected, journal version

References in corpus (29)

• Antenna Subtraction at NNLO
• Isolated photons in perturbative QCD
• Antenna subtraction with hadronic initial states
• Cross section of isolated prompt photons in hadron-hadron collisions
• Diphoton production at hadron colliders: a fully-differential QCD calculation at NNLO
• A full Next to Leading Order study of direct photon pair production in hadronic collisions
• A new critical study of photon production in hadronic collisions
• Infrared Structure at NNLO Using Antenna Subtraction
• Antenna subtraction at NNLO with hadronic initial states: initial-final configurations
• Predictions for diphoton production at the LHC through NNLO in QCD
• Direct photon production at next-to-next-to-leading order
• Antenna subtraction at NNLO with hadronic initial states: real-virtual initial-initial configurations
• A complete $\mathcal{O}(\alpha {\alpha }_s)$ calculation of the Photon + 1 Jet rate in $e^{+}{e}^{-}$ annihilation
• Triphoton production at hadron colliders in NNLO QCD
• NNLO QCD corrections to three-photon production at the LHC
• Perturbative Heavy Quark Fragmentation Function through O(alpha_s^2)
• Analytic Continuation of Massless Two-Loop Four-Point Functions
• NNLO QCD corrections to jet production in deep inelastic scattering
• Perturbative Heavy Quark Fragmentation Function through O(α_s^2): Gluon Initiated Contribution
• A practical guide to event generation for prompt photon production
• Diphoton production at the LHC: a QCD study up to NNLO
• Next-to-Leading Order QCD Corrections to Jet Cross Sections and Jet Rates in Deeply Inelastic Electron Proton Scattering
• Next-to-leading order QCD corrections to diphoton-plus-jet production through gluon fusion at the LHC
• Driving Miss Data: Going up a gear to NNLO
• B-hadron hadro-production in NNLO QCD: application to LHC $t\bar{t}$ events with leptonic decays
• Measurement of the quark to photon fragmentation function through the inclusive production of prompt photons in hadronic Z^0 decays
• Scale and isolation sensitivity of diphoton distributions at the LHC
• Access to Photon Fragmentation Functions in Hadronic Jet Production
• Photon isolation and jet substructure

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• Towards a Global QCD Analysis of Fragmentation Functions at Next-To-Next-To-Leading Order Accuracy
• Les Houches 2021: Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
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• Next-to-Next-to-Leading Order QCD Corrections to Polarized Semi-Inclusive Deep-Inelastic Scattering
• Polarized semi-inclusive deep-inelastic scattering at NNLO in QCD
• The colourful antenna subtraction method
• NNLO QCD corrections to unpolarized and polarized SIDIS
• Multi-Collinear Splitting Kernels for Track Function Evolution
• Generalised Antenna Functions for Higher-Order Calculations
• Antenna subtraction at NNLO with identified hadrons
• Neutral and Charged Current Semi-Inclusive Deep-Inelastic Scattering at NNLO QCD
• Inclusive-photon production and its dependence on photon isolation in $pp$ collisions at $\sqrt{s}=13$ TeV using 139 fb${}^{-1}$ of ATLAS data
• Single Photon Production at Hadron Colliders at NNLO QCD with Realistic Photon Isolation
• QCD anatomy of photon isolation
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• NLO QCD predictions for $\mathbf{t}\bar{\mathbf{t}}\mathbf{\gamma }$ with realistic photon isolation
• Identified Hadron Production in Deeply Inelastic Neutrino-Nucleon Scattering
• Single-valued representation of unpolarized and polarized semi-inclusive deep inelastic scattering at next-to-next-to-leading order
• Analytic auxiliary mass flow to compute master integrals in singular kinematics
• Complete NLO corrections to off-shell $\mathbf{t}\bar{\mathbf{t}}$ production in the $\mathbf{\ell }+\mathbf{j}$ decay channel