We give an overview of the theory for generalized parton distributions. Topics covered are
their general properties and physical interpretation, the possibility to explore the three …

The generalized parton distributions, introduced nearly a decade ago, have emerged as a
universal tool to describe hadrons in terms of quark and gluonic degrees of freedom. They …

Electroproduction of light vector mesons is analyzed on the basis of handbag factorization.
The required generalized parton distributions are constructed from the CTEQ6 parton …

We analyze electroproduction of light vector mesons (V=ρ,ϕ) at small Bjorken-x in an
approach that includes the gluonic generalized parton distributions and a partonic …

We perform the first next-to-leading order computation of the γ (*)→ V (ρ, ϕ, ω) exclusive
impact factor in the QCD shock-wave approach and in the most general kinematics. This …

We review a broad range of phenomena in diffraction in the context of hadron–hadron,
hadron–nucleus collisions and deep inelastic lepton–proton/nucleus scattering focusing on …

The target asymmetry for electroproduction of vector mesons is investigated within the
handbag approach. While the generalized parton distribution (GPD) H is taken from a …

We review a unique prediction of Quantum Chromo Dynamics, called color transparency
(CT), where the final (and/or initial) state interactions of hadrons with the nuclear medium …

We describe a consistent approach to factorization of scattering amplitudes for exclusive
processes beyond the leading twist approximation. The method involves the Taylor …

We critically reexamine the formalism for treating the leading-twist contributions from the two-
gluon Fock components occurring in hard processes that involve η and η′ mesons and …