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 …

We outline in detail the properties of generalized parton distributions (GPDs), which contain
new information on the structure of hadrons and which enter the description of hard …

Recently, there have been some interesting developments involving off-forward parton
distributions of the nucleon, deeply virtual Compton scattering, and hard diffractive vector …

We estimate the leading order amplitudes for exclusive photon and meson electroproduction
reactions at large Q 2 in the valence region in terms of skewed quark distributions. As …

We present a comprehensive analysis of the γ W interference radiative correction to the
neutron β-decay matrix element. Within a dispersion relations approach, we compute the …

A bstract We show that exclusive production of a pair of high transverse momentum photons
in pion-nucleon collisions can be systematically studied in QCD factorization approach if the …

Attempting to understand the origin of the intrinsic spin of the proton and neutron has been
an active area of both experimental and theoretical research for the past twenty years. With …

A bstract We compute the exclusive photoproduction of a γπ±pair using the collinear
factorisation framework, in the kinematic regime where the pair has a large invariant mass …

We extend our studies of a new class of 2→ 3 exclusive processes using the collinear
factorization framework by considering the exclusive photoproduction of a γ ρ pair, in the …