What the lattice can tell us about nucleon structure

TL;DR

This review discusses recent lattice QCD calculations of key nucleon properties, including electromagnetic form factors, momentum fraction, and axial coupling, highlighting their importance for understanding nucleon structure.

Contribution

It summarizes the current status and recent progress in lattice computations of three fundamental nucleon observables, emphasizing their phenomenological relevance.

Findings

Lattice calculations provide insights into nucleon electromagnetic form factors.

Recent results improve understanding of the nucleon momentum fraction.

Lattice studies offer valuable estimates of the nucleon axial coupling gA.

Abstract

This review focuses on the current status of lattice calculations of three observables which are both phenomenologically and experimentally relevant and have been scrutinized recently. These three observables are the nucleon electromagnetic form factors, the momentum fraction, <x>, and the nucleon axial coupling, gA.