Virtual Compton Scattering off the nucleon

Abstract

We review the recent developments of virtual Compton scattering. We focus on the kinematical regimes which look the most promising. The threshold regime gives access to the generalized polarizabilities of the proton. The hard scattering regime allows tests of perturbative QCD predictions and of the valence quark wave function. The Bjorken regime is closely related to deep inelastic scattering. It gives access to the off-forward parton distributions which generalize the ordinary parton distributions and may shed a new light on the spin problem. For each regime we discuss the experimental perspectives and the role of the Bethe-Heitler background.

66 pages, 23 figures, updated version with minor corrections

Cited by in corpus (113)

• Generalized Parton Distributions
• Unraveling hadron structure with generalized parton distributions
• Hard Exclusive Reactions and the Structure of Hadrons
• Theory of deeply virtual Compton scattering on the nucleon
• Skewed and double distributions in pion and nucleon
• Deeply virtual electroproduction of photons and mesons on the nucleon : leading order amplitudes and power corrections
• Measurement of the Beam-Spin Azimuthal Asymmetry Associated with Deeply-Virtual Compton Scattering
• Dispersion relations in real and virtual Compton scattering
• The Spin Structure of the Nucleon
• Electromagnetic Form Factors of the Nucleon and Compton Scattering
• Impact Parameter Dependent Parton Distributions and Transverse Single Spin Asymmetries
• QED radiative corrections to virtual Compton scattering
• Hard exclusive pseudoscalar meson electroproduction and spin structure of a nucleon
• On the gauge invariance of the DVCS amplitude
• DVCS on the nucleon : study of the twist-3 effects
• Measurement of the vector analyzing power in elastic electron-proton scattering as a probe of double photon exchange amplitudes
• From hard exclusive meson electroproduction to deeply virtual Compton scattering
• DVCS amplitude in the parton model
• Nucleon Polarizabilities: from Compton Scattering to Hydrogen Atom
• The E00-110 experiment in Jefferson Lab's Hall A: Deeply Virtual Compton Scattering off the Proton at 6 GeV
• Generalized parton distributions of the pion in a Bethe-Salpeter approach
• DVCS amplitude at tree level: Transversality, twist-3, and factorization
• Deep Electroproduction of Photons and Mesons on the Deuteron
• Wandzura-Wilczek approximation for the twist-3 DVCS amplitude
• The first determination of Generalized Polarizabilities of the proton by a Virtual Compton Scattering experiment
• Resonance estimates for single spin asymmetries in elastic electron-nucleon scattering
• Deeply virtual Compton scattering in next-to-leading order
• From Bethe-Salpeter Wave Functions to Generalised Parton Distributions
• Decomposition of nonlocal light-cone operators into harmonic operators of definite twist
• DVCS amplitude with kinematical twist-3 terms
• DVCS on spinless nuclear targets in impulse approximation
• Generalized Parton Distributions of ^3He
• Test of two new parameterizations of the Generalized Parton Distribution $H$
• Extraction of Generalized Parton Distribution Observables from Deeply Virtual Electron Proton Scattering Experiments
• The QCD description of diffractive processes
• Hadron structure at low Q^2
• Extraction of the Compton Form Factor H from DVCS measurements at Jefferson Lab
• Wandzura-Wilczek approximation from generalized rotational invariance
• Dual parametrization of GPDs versus the double distribution Ansatz
• Generalized dipole polarizabilities and the spatial structure of hadrons
• Measurement of the Generalized Polarizabilities of the Proton in Virtual Scattering at Q2=0.92 and 1.76 GeV2: I. Low Energy Expansion Analysis
• Measurement of the Generalized Polarizabilities of the Proton in Virtual Compton Scattering at Q2= 0.92 and 1.76 GeV2
• Measurements of the Generalized Electric and Magnetic Polarizabilities of the Proton at Low Q2 Using the VCS Reaction
• Recalculation of Proton Compton Scattering in Perturbative QCD
• DVCS on the nucleon to the twist-3 accuracy
• Impact Representation of Generalized Distribution Amplitudes
• Dispersion Theory in Electromagnetic Interactions
• Easy as ${\pi }^o$: On the Interpretation of Recent Electroproduction Results
• Pion production in deeply virtual Compton scattering
• Low-energy and low-momentum representation of the virtual Compton scattering amplitude
• Conventional nuclear effects on generalized parton distributions of trinucleons
• Light-front interpretation of Proton Generalized Polarizabilities
• A new measurement of the structure functions $P_{LL}-P_{TT}/epsilon$ and $P_{LT}$ in virtual Compton scattering at $Q^2=$ 0.33 (GeV/c)${}^2$
• Gauge invariance, causality and gluonic poles
• Generalized polarizabilities of the proton in a constituent quark model revisited
• Generalized spin polarizabilities of the nucleon in Heavy Baryon Chiral Perturbation Theory at order $\mathcal{O}(p^4)$
• Target mass corrections for virtual Compton scattering at twist-2 and generalized, non-forward Wandzura-Wilczek and Callan-Gross relations
• A Model for the Off-forward Structure Functions of the Pion
• Dispersion relation formalism for virtual Compton scattering and the generalized polarizabilities of the nucleon
• Nonperturbative versus perturbative effects in generalized parton distributions
• New Predictions for generalized spin polarizabilities from heavy baryon chiral perturbation theory
• Virtual Compton Scattering and the Generalized Polarizabilities of the Proton at Q^2=0.92 and 1.76 GeV^2
• Beam normal spin asymmetry for the $ep\to e\Delta (1232)$ process
• The Vector Analyzing Power in Elastic Electron-Proton Scattering
• Target mass and finite $t$ corrections to diffractive deeply inelastic scattering
• Gauge-invariant TMD factorization for Drell-Yan hadronic tensor at small x
• Resumming soft and collinear contributions in deeply virtual Compton scattering
• Generalized polarizabilities of the nucleon in baryon chiral perturbation theory
• Sum rules across the unpolarized Compton processes involving generalized polarizabilities and moments of nucleon structure functions
• Generalized polarizabilities of the pion in chiral perturbation theory
• Conformal string operators and evolution of skewed parton distributions
• Helicity-dependent generalized parton distributions and composite constituent quarks
• Real and Virtual Compton Scattering off the Nucleon
• Deeply virtual Compton scattering at small x
• A Kinematically Complete Analysis of the CLAS data on the Proton Structure Function $F_2$ in a Regge-Dual model
• Real and Virtual Compton Scattering: the nucleon polarisabilities
• Determination of generalized parton distributions through a simultaneous analysis of axial form factor and wide-angle Compton scattering data
• Weak Deeply Virtual Compton Scattering
• Virtual Compton Scattering measurements in the nucleon resonance region
• Spin-dependent sum rules connecting real and virtual Compton scattering verified
• Virtual Compton Scattering and Nucleon Generalized Polarizabilities
• New contributions to gluon poles in direct photon production
• Polarized GPDs and structure functions of $\rho$ meson
• New Insight in the $Q^2$-Dependence of Proton Generalized Polarizabilities
• The Light-Cone Fock Representation in QCD
• Effects of next-to-leading order DGLAP evolution on generalized parton distributions of the proton and deeply virtual Compton scattering at high energy
• Polarizability relations across real and virtual Compton scattering processes
• Measurement of the Beam-Recoil Polarization in Low-Energy Virtual Compton Scattering from the Proton
• Physics Opportunities at a Photon-Photon Collider
• Virtual Compton Scattering at Low Energy and the Generalized Polarizabilities of the Nucleon o
• Deeply Virtual Compton Scattering on Spin-1 Nuclei
• Real and Virtual Compton Scattering at Low Energies
• High Energy Photon-Photon Collisions at a Linear Collider
• Separation of Soft and Hard Physics in Deeply Virtual Compton Scattering
• Gauge invariance of DVCS off an arbitrary spin hadron: the deuteron target case
• On scale dependence of QCD string operators
• Measurement of the Generalized Polarizabilities of the Proton at Intermediate $Q^2$
• Generalized polarizabilities and electroexcitation of the nucleon
• Deeply Virtual Exclusive Processes and Generalized Parton Distributions
• Leading-order QED radiative corrections to timelike Compton scattering on the proton
• Nucleon Polarizabilities: Theory
• Generalized Parton Distributions and Nucleon Resonances
• Virtual Compton scattering at low energies with a positron beam
• Deep Virtual Compton Scattering and the Nucleon Generalized Parton Distributions
• Gauge invariance, gluonic poles and single spin asymmetry in Drell-Yan processes
• Photoproduction of electron-positron pairs on the proton in the resonance region
• Single-spin asymmetry in DVCS: fragmentation region of polarised lepton
• Deeply virtual electroproduction of photons and mesons on the nucleon
• Scaling violations and off-forward parton distributions: leading order and beyond
• Soft-photon radiative corrections to the $e^{-}p\to e^{-}p{l}^{-}{l}^{+}$ process
• The Proton Electromagnetic Generalized Polarizabilities
• Skewed Parton Distributions
• Exclusive photoproduction of heavy quarkonia pairs