Global analysis of generalized parton distributions -- collider kinematics --

Abstract

We utilize H1 and ZEUS data for exclusive electroproduction of photons, ${\rho }^0$- and $\varphi$-mesons to access generalized parton distributions at small momentum fraction. To do so, we employ state-of-the art techniques, based on next-to-leading order perturbation theory, flexible model parametrization, and Bayesian inference. We provide a partonic interpretation of our analysis, where emphasize is given to the transverse distribution of sea quarks and gluons.

Comments: 15 pages, 6 figures, LaTeX