Nucleon structure from 2+1-flavor dynamical DWF lattice QCD at nearly physical pion mass

TL;DR

This paper reports on nucleon structure calculations using 2+1-flavor dynamical domain-wall fermion lattice QCD ensembles near physical pion mass, highlighting the preservation of chiral symmetry and recent progress in realistic simulations.

Contribution

It presents the current status of nucleon-structure calculations with near-physical pion mass using advanced lattice QCD ensembles with domain-wall fermions.

Findings

Realistic 2+1-flavor lattice QCD ensembles generated with near-physical strange and light quark masses.

Progress in nucleon-structure calculations preserving chiral symmetry.

Ensembles enable more accurate hadron physics studies.

Abstract

Domain-wall fermions (DWF) is a lattice discretization for Dirac fields that preserves continuum-like chiral and flavor symmetries that are essential in hadron physics. RIKEN-BNL-Columbia (RBC) and UKQCD Collaborations have been generating sets of realistic 2+1-flavor dynamical lattice quantum chromodynamics (QCD) numerical ensembles with DWF quarks with strange mass set almost exactly at its physical value via reweighing and degenerate up and down mass set as light as practical. In this report the current status of the nucleon-structure calculations using these ensembles are summarized.