Nucleon axial charge and structure functions with domain wall fermions

TL;DR

This paper presents lattice QCD calculations of nucleon structure functions and axial charge using domain wall fermions, demonstrating effective methods for computing these quantities with both quenched and unquenched simulations.

Contribution

It reports on the current status of RBCK calculations of nucleon structure using domain wall fermions and DBW2 gauge action, highlighting their effectiveness for key nucleon observables.

Findings

Successful calculation of isovector vector and axial charges

Accurate determination of moments of structure functions <x>_q, d_1, and <1>_{δ q}

Effective use of domain wall fermions with DBW2 gauge action

Abstract

We report the current status of RBCK calculations on nucleon structure with both quenched and unquenched lattice QCD. The combination of domain wall fermions and DBW2 gauge action works well for isovector vector and axial charges, and moments of structure functions <x>_q, d_1, and <1>_{\delta q}.