From form factors to generalized parton distributions

TL;DR

This paper extracts generalized parton distributions from electromagnetic nucleon form factor data, enabling insights into proton spin contributions and the spatial distribution of valence quarks.

Contribution

It introduces a method to derive generalized parton distributions from form factor data, linking experimental measurements to internal proton structure.

Findings

Quantifies the angular momentum contribution of valence quarks to proton spin.

Provides transverse spatial distribution of valence quarks inside the proton.

Demonstrates the extraction process from electromagnetic form factors.

Abstract

I present an extraction of generalized parton distributions from selected data on the electromagnetic nucleon form factors. The extracted distributions can in particular be used to quantify the contribution to the proton spin from the total angular momentum carried by valence quarks, as well as their transverse spatial distribution inside the proton.