Unified framework for generalized and transverse-momentum dependent parton distributions within a 3Q light-cone picture of the nucleon

TL;DR

This paper develops a unified theoretical framework to model various parton distributions in the nucleon using a light-cone wave function approach, connecting different observables and providing predictions.

Contribution

It introduces a comprehensive model that links generalized and transverse-momentum dependent parton distributions within a 3-quark light-cone picture, unifying multiple observables.

Findings

Comparison with experimental data shows good agreement.

Model makes specific predictions for unmeasured observables.

Provides a consistent description across different distribution types.

Abstract

We present a systematic study of generalized transverse-momentum dependent parton distributions (GTMDs). By taking specific limits or projections, these GTMDs yield various transverse-momentum dependent and generalized parton distributions, thus providing a unified framework to simultaneously model different observables. We present such simultaneous modeling by considering a light-cone wave function overlap representation of the GTMDs. We construct the different quark-quark correlation functions from the 3-quark Fock components within both the light-front constituent quark model as well as within the chiral quark-soliton model. We provide a comparison with available data and make predictions for different observables.