Diffractive vector meson electroproduction at small Bjorken $x$ within GPD approach

TL;DR

This paper investigates light vector meson electroproduction at small Bjorken $x$ using a GPD-based model with a modified perturbative approach, achieving good agreement with experimental data on cross sections and spin observables.

Contribution

It introduces a GPD-based model incorporating quark transverse degrees of freedom within a modified perturbative approach for vector meson electroproduction.

Findings

Results align well with experimental cross sections.

Spin observables are accurately described.

The approach improves understanding of small $x$ vector meson production.

Abstract

We study light vector meson electroproduction at small $x$ within the generalized parton distributions (GPDs) model. The modified perturbative approach is used, where the quark transverse degrees of freedom in the vector meson wave function and hard subprocess are considered. Our results on the cross section and spin observables are in good agreement with experiment