Martin McDermott

Modeling generalized parton distributions to describe deeply virtual Compton scattering data

We present a new model for generalized parton distributions (GPDs), based on the aligned jet model, which successfully describes the deeply virtual Compton scattering (DVCS) data from H1, ZEUS, HERMES and CLAS. We also present an easily implementable and flexible algorithm for their construction. This new model is necessary since the most widely used models for GPDs, which are based on factorized double distributions, cannot, in their current form, describe the DVCS data when employed in a full QCD analysis. We demonstrate explicitly the reason for the shortcoming in the data description. We also highlight several non-perturbative input parameters which could be used to tune the GPDs, and the

A detailed next-to-leading order QCD analysis of deeply virtual Compton scattering observables

t

Nuclear shadowing in deep inelastic scattering on nuclei: leading twist versus eikonal approaches

-dependence, to the DVCS data using a fitting procedure.

Revealing the Black-Body Regime of Small- x Deep-Inelastic Scattering through Final-State Signals

Abstract We present a detailed next-to-leading order (NLO) leading twist QCD analysis of deeply virtual Compton scattering (DVCS) observables, for several different input scenarios, in the

Next-to-leading order QCD analysis of deeply virtual Compton scattering amplitudes

\overline{\mbox{MS}}

A next-to-leading order analysis of deeply virtual Compton scattering

scheme. We discuss the size of the NLO effects and the behavior of the observables in skewedness

A fresh look at diffractive J/ψ photoproduction at HERA, with predictions for THERA

\zeta

Colour dipoles and virtual Compton scattering

, momentum transfer,t, and photon virtuality,

Electron nucleus collisions at THERA

q^2=-Q^2

Erratum: Next-to-leading order evolution of generalized parton distributions for DESY HERA and HERMES [Phys. Rev. D65, 056012 (2002)]

. We present results on the amplitude level for unpolarized and longitudinally polarized lepton probes, and unpolarized and longitudinally polarized proton targets. We make predictions for various asymmetries and for the DVCS cross section and compare with the available data.