Survey of present data on photon structure functions and resolved photon processes

Abstract

Present data on the partonic content of the photon from LEP, TRISTAN and HERA accelerators are reviewed and the essential aspects of the underlying ideas and methods are pointed out. Results of the unpolarized photon structure function F_2 from DIS_{e gamma} experiments and on large p_T jet production processes in the resolved gamma-gamma collisions are presented for both real and virtual photons. The results of analysis of the hadronic final state accompanying the DIS_{e gamma} measurements, showing some discrepancies with the Monte Carlo models, are collected together and presented as a separate issue. Also results on the DIS_{e gamma} with leptonic final states are shown. The results from resolved real and virtual photon processes at HERA collider based on the single and double jet events, also charged particles and prompt photons, are presented. In the context of virtual photon processes the data for forward jet and forward particle production are included. In addition a short presentation of the recent data on the heavy quark content of the photon is given. Related topics - the polarized (spin dependent) structure functions for the real and virtual photon, the structure function of the electron and the photonic content of the proton are also shortly mentioned.

latex, 220 pages, 195 ps figures; extended and updated version of hep-ph/9806291; to appear in Physics Reports

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• BFKL pomeron in the next-to-leading approximation
• Physics with e^+e^- Linear Colliders
• Charm electroproduction viewed in the variable-flavour number scheme versus fixed-order perturbation theory
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• Jet photoproduction at HERA
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• The Photon Structure from Deep Inelastic Electron-Photon Scattering
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• Cross Sections for Charm Production in $ep$ Collisions: Massive versus Massless Scheme
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• Heavy-Quark Production by Polarized and Unpolarized Photons in Next-to-Leading Order
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• Study of the photon remnant in resolved photoproduction at HERA
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• High Energy Photon-Photon Collisions -
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• Prompt Photon Plus Jet Photoproduction at HERA at Next-to-Leading Order in QCD
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• Polarized Photoproduction of Heavy Quarks in Next-to-Leading Order
• Two Photon Physics at LEP2
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Cited by in corpus (36)

• Theory of hard photoproduction
• New NLO Parametrizations of the Parton Distributions in Real Photons
• Next-to-next-to-leading order QCD corrections to the photon's parton structure
• Heavy quarkonium photoproduction in ultrarelativistic heavy ion collisions
• Photon structure functions at small $x$ in holographic QCD
• NLO photon parton parametrization using ee and ep data
• Measurement of inclusive jet cross sections in photoproduction at HERA
• Production of large transverse momentum dileptons and photons in $pp$, $dA$ and $AA$ collisions by photoproduction processes
• The Virtual Photon Structure to the Next-to-next-to-leading Order in QCD
• The dependence of dijet production on photon virtuality in ep collisions at HERA
• Total photoproduction cross-section at very high energy
• The $alphaalph{a}_s^2$ corrections to the first moment of the polarized virtual photon structure function $g_1^{g}amma(x,Q^2,P^2)$
• Inclusive diffractive heavy quarkonium photoproduction in pp, pA and AA collisions
• Photoproduction of dileptons and photons in p-p collisions at Large Hadron Collider energies
• Target Mass Corrections for the Virtual Photon Structure Functions to the Next-to-next-to-leading Order in QCD
• Production of mirror fermions via $e\gamma$ and $ep$ collisions in the littlest Higgs model with T-parity
• Transition from real to virtual polarized photon structures
• Photoproductions of dileptons, photons, and light vector mesons in p-p, p-Pb, and Pb-Pb collisions at Large Hadron Collider energies
• On parton distributions in a photon gas
• Towards understanding $b\bar{b}$ production in $\gamma \gamma$ collisions
• Minijets, soft gluon resummation and photon cross-sections
• Measurement of tan beta in associated t H^\pm Production in gamma gamma Collisions
• Top quark effects on the virtual photon structure function at ILC
• Heavy quark effects on parton distribution functions in the unpolarized virtual photon up to the next-to-leading order in QCD
• Real photons produced from photoproduction in $pp$ collisions
• The new charged gauge boson $W^{\prime }$ and the subprocess $eq\to \nu q^{\prime }$ at $e^{+}{e}^{-}$ and $ep$ colliders
• Resummation of large logarithms in the heavy quark effects on the parton distributions inside the virtual photon
• Resonant Production of Scalar Diquarks at the Next Generation Electron-Positron Colliders
• Photon Structure Function in Supersymmetric QCD Revisited
• Parton distributions in the virtual photon target up to NNLO in QCD
• The real photon structure functions in massive parton model in NLO
• Squark Contributions to Photon Structure Functions and Positivity Constraints
• Two-Photon Processes and Photon Structure
• Prompt photon production in photoproduction, DIS and hadronic collisions
• Hadronic structure of the photon at small x in holographic QCD
• Elastic and inelastic $J/\psi$ photoproduction in $p$-$p$ collisions at LHC energies: the feature of Weizsäcker-Williams approximation