High energy DVCS on a photon and related meson exclusive production

Abstract

In this work we estimate the differential cross section for the high energy deeply virtual Compton scattering on a photon target within the QCD dipole-dipole scattering formalism. For the phenomenology, a saturation model for the dipole-dipole cross section for two photon scattering is considered. Its robustness is supported by good description of current accelerator data. In addition, we consider the related exclusive vector meson production processes. This analysis is focused on the light $\rho$ and $\varphi$ meson production, which produce larger cross sections. The phenomenological results are compared with the theoretical calculation using the CD BFKL approach.

arXiv comment6 pages, 5 figures. Version to be published in Physical Review D

References in corpus (27)

• Computing Quark and Gluon Distribution Functions for Very Large Nuclei
• Operator expansion for high-energy scattering
• Small-x F_2 Structure Function of a Nucleus Including Multiple Pomeron Exchanges
• Nonlinear Gluon Evolution in the Color Glass Condensate: I
• Saturation Effects in Deep Inelastic Scattering at low $Q^2$ and its Implications on Diffraction
• The Wilson renormalization group for low x physics: towards the high density regime
• Nonlinear Gluon Evolution in the Color Glass Condensate: II
• Unitarization of the BFKL Pomeron on a Nucleus
• Saturation in Diffractive Deep Inelastic Scattering
• The Intrinsic Glue Distribution at Very Small x
• Unitarity at small Bjorken x
• The Wilson renormalization group for low x physics: Gluon evolution at finite parton density
• Single and Double BFKL Pomeron Exchange and a Dipole Picture of High Energy Hard Processes
• Relating different approaches to nonlinear QCD evolution at finite gluon density
• Unitarization of Gluon Distribution in the Doubly Logarithmic Regime at High Density
• Off-diagonal distributions fixed by diagonal partons at small $x$ and $\xi$
• Colour dipoles and rho, phi electroproduction
• Vector meson leptoproduction and nonperturbative gluon fluctuations in QCD
• Diffractive Vector Meson Production at HERA: from Soft to Hard QCD
• Electroproduction of two light vector mesons in the next-to-leading approximation
• The color dipole BFKL-Regge expansion: from DIS on protons to pions to rise of hadronic cross sections
• Double diffractive rho-production in gamma^* gamma^* collisions
• Nuclear exclusive vector meson photoproduction
• Deeply Virtual Compton Scattering on a Photon and Generalized Parton Distributions in the Photon
• Saturation model for two-photon interactions at high energies
• Predicitions for high-energy real and virtual photon-photon scattering from color dipole BFKL-Regge factorization
• QCD evolution and skewedness effects in color dipole description of DVCS