Status of nucleon structure calculations with 2+1 flavors of domain wall fermions

TL;DR

This paper reports on the progress of nucleon structure calculations using 2+1 flavors of domain wall fermions on specific gauge ensembles, focusing on electromagnetic form factors and radii.

Contribution

It provides updated results on nucleon form factors using domain wall fermions at near-physical pion masses.

Findings

Preliminary results for isovector electromagnetic form factors.

Estimates of nucleon root-mean-squared radii.

Use of RBC-UKQCD 32^3×64 gauge ensembles.

Abstract

We report the status of our nucleon structure calculations with 2+1 flavors of domain wall fermions on the RBC-UKQCD $32^3\times64$ gauge ensembles with the Iwasaki+DSDR action. These ensembles have a fixed lattice scale of 1/a = 1.37 GeV, and two pion masses of about 170 and 250 MeV. Preliminary results for the isovector electromagnectic form factors and their corresponding root-mean-squared (r.m.s.) radii will be presented.