Baryon axial charges from Chirally Improved fermions - first results

TL;DR

This paper reports initial findings on the axial charge of hadrons using dynamical Chirally Improved fermion simulations on lattice QCD, employing variational methods to reduce excited state contamination.

Contribution

First results demonstrating the use of Chirally Improved fermions and variational techniques to compute hadron axial charges in lattice QCD.

Findings

Initial axial charge values for various hadrons.

Use of Jacobi-smeared interpolators to suppress excited states.

Lattice size of 16^3x32 with 2.4 fm spatial extent.

Abstract

We present first results from dynamical Chirally Improved (CI) fermion simulations for the axial charge $G_A$ of various hadrons. We work with 16^3x32 lattices of spatial extent 2.4 fm and use the variational method with a suitable basis of Jacobi-smeared interpolators to suppress contaminations from excited states.