Electroproduction of vector mesons - factorization of end-point contributions

Abstract

The end-point contributions in the quark longitudinal momentum fraction of the virtual photon (${\gamma }^{\ast }$) to vector meson ($V$) impact factor to the diffractive electroproduction amplitude can be factorized in terms of a generalized parton evolution of the target parton distribution. The result is used to model the helicity amplitudes ${\gamma }^{\ast }p\to Vp$ in terms of small $x$ generalized parton distributions.

24 pages LaTex, 4 eps-figures

References in corpus (5)

• Hard Exclusive Reactions and the Structure of Hadrons
• Theory of deeply virtual Compton scattering on the nucleon
• Exclusive photoproduction of J/psi mesons at HERA
• New data and the hard pomeron
• A measurement of the t dependence of the helicity structure of diffractive rho meson electroproduction at HERA

Cited by in corpus (5)

• Vector Meson Photoproduction from the BFKL Equation II: Phenomenology
• Diffractive production of two rho^0_L mesons in e^+e^- collisions
• A Study of the Gluon Ladder in Diffractive Processes
• Baryon scattering at high energies: wave function, impact factor, and gluon radiation
• Diffractive large transferred momentum photoproduction of vector mesons