Electroproduction of Vector Mesons at Small $x$

Abstract

Vector meson electroproduction is analyzed within the two-gluon (2G) model and the generalized parton distribution (GPD) approach at small $x$-Bjorken. We demonstrate that 2G and GPD models are not completely equivalent. At the same time, both models are in reasonable agreement with available experimental data on light vector meson electroproduction.

Comments: 6pages, 3 figures, to appear in Proc of XVII International Baldin Seminar, Dubna, September 27 - October 1, 2004. One reference is added