Exploring the structure of the proton through polarization observables in l p \to jet X

TL;DR

This paper analyzes polarization observables in lepton-proton collisions to understand proton structure, providing numerical estimates for future collider experiments and highlighting the potential of transverse single target spin asymmetry measurements.

Contribution

It offers a comprehensive calculation of polarization observables in jet production within collinear factorization, linking them to quark-gluon correlations and TMD parton distributions.

Findings

Transverse single target spin asymmetry shows promising measurement prospects.

Numerical estimates suggest feasibility at future Electron Ion Colliders.

Observable related to Sivers function provides insights into proton spin structure.

Abstract

We present results for a complete set of polarization observables for jet production in lepton proton collision, where the final state lepton is not observed. The calculations are carried out in collinear factorization at the level of Born diagrams. For all the observables we also provide numerical estimates for typical kinematics of a potential future Electron Ion Collider. On the basis of this numerical study, the prospects for the transverse single target spin asymmetry are particularly promising. This observable is given by a certain quark-gluon correlation function, which has a direct relation to the transverse momentum dependent Sivers parton distribution.