Probing quark transversity GPDs in diffractive photo- and electroproduction on the deuteron

TL;DR

This paper explores how diffractive electro- and photoproduction of vector mesons on deuterons can be used to probe quark transversity GPDs, highlighting potential experimental setups at future electron-ion colliders.

Contribution

It provides the first detailed calculations of this process for coherent rho-omega meson production on deuterons, demonstrating feasibility for probing transversity GPDs.

Findings

Cross section calculations indicate measurable signals at future colliders.

Electron-ion colliders with deuteron beams can effectively probe deuteron transversity GPDs.

The process offers a new method to access quark transversity distributions.

Abstract

Transversity generalized parton distributions (GPDs) can be probed in diffractive electro- and photoproduction of two vector mesons on a hadron in kinematics where the two vector mesons are separated by a large rapidity gap. We report on calculations for this process in the case of coherent $\rho^0-\omega$ meson production on a deuteron target. Our cross section results show that an electron-ion collider with deuteron beams and forward detectors could probe deuteron transversity GPDs.