Probing Transversity GPDs in Photo and Electroproduction of Two Vector Mesons

TL;DR

This paper discusses a method to access chiral-odd transversity GPDs through electroproduction of two vector mesons, highlighting the importance of transversely polarized rho mesons for probing these elusive distributions.

Contribution

It introduces a novel approach to probe transversity GPDs by using the electroproduction of two vector mesons with specific polarization states.

Findings

Electroproduction of two mesons enables access to transversity GPDs.

Using a transversely polarized rho meson is key for this probing method.

The approach offers a new avenue for studying chiral-odd distributions.

Abstract

Electroproduction of two mesons well separated in rapidity allows the first feasible selective access to chiral-odd transversity GPDs provided one of these mesons is a transversely polarized vector meson rho_T.