Perturbative and non-perturbative QCD corrections to wide-angle Compton scattering

Abstract

We investigate corrections to the handbag approach for wide-angle Compton scattering off protons at moderately large momentum transfer: the photon-parton subprocess is calculated to next-to-leading order QCD and contributions from the generalized parton distribution E} are taken into account. Photon and proton helicity flip amplitudes are non-zero due to these corrections which leads to a wealth of polarization phenomena in Compton scattering. Thus, for instance, the incoming photon asymmetry or the transverse polarization of the proton are non-zero although small.

19 pages, 9 figures (using LATEX with epsfig)

References in corpus (1)

• Sudakov Form Factors

Cited by in corpus (32)

• Generalized Parton Distributions
• Generalized parton distributions from nucleon form factor data
• The two-photon exchange contribution to elastic electron-nucleon scattering at large momentum transfer
• Nucleon form factors, generalized parton distributions and quark angular momentum
• Generalized Parton Distributions for large $x$
• Transition between nuclear and quark-gluon descriptions of hadrons and light nuclei
• Two-photon exchange corrections to elastic electron-proton scattering at large momentum transfer within the SCET approach
• Compton Scattering Cross Section on the Proton at High Momentum Transfer
• Local Two-Photon Couplings and the J=0 Fixed Pole in Real and Virtual Compton Scattering
• Proton mass effects in wide-angle Compton scattering
• Generalized parton distributions at zero skewness
• Polarization Transfer in Proton Compton Scattering at High Momentum Transfer
• Real and Virtual Compton Scattering in a Regge Approach
• Proton-Antiproton Annihilation into a Lambda_c-Antilambda_c Pair
• Signatures of the handbag mechanism in wide-angle photoproduction of pseudoscalar mesons
• Handling the Handbag Diagram in Compton Scattering on the Proton
• From the $\gamma \gamma \to p\bar{p}$ reaction to the production of $p\bar{p}$ pairs in ultraperipheral ultrarelativistic heavy-ion collisions at the LHC
• Real and Virtual Nucleon Compton Scattering in the Perturbative Limit
• Determination of generalized parton distributions through a simultaneous analysis of axial form factor and wide-angle Compton scattering data
• Unitarity constraints on charged pion photoproduction at large p_perp
• Twist-3 contributions to wide-angle photoproduction of pions
• The GPD H-tilde and spin correlations in wide-angle Compton scattering
• Polarization Transfer in Wide-Angle Compton Scattering and Single-Pion Photoproduction from the Proton
• QCD radiative corrections to the soft spectator contribution in the wide angle Compton scattering
• Separation of Soft and Hard Physics in Deeply Virtual Compton Scattering
• Wide-angle photo- and electroproduction of pions to twist-3 accuracy
• One-Loop Helicity Amplitudes for Parton Level Virtual Compton Scattering
• Hard exclusive processes and higher-order QCD corrections
• Generalized perton distributions: analysis and applications
• Generalized parton distributions and wide-angle exclusive scattering
• Virtual Compton Scattering and Neutral Pion Electroproduction in the Resonance Region up to the Deep Inelastic Region at Backward Angles
• Some comments on the handbag approach to wide-angle exclusive scattering