Meson spectral functions with chirally symmetric lattice fermions
Gert Aarts, Justin Foley (Swansea University)
TL;DR
This paper investigates meson spectral functions in lattice QCD using chirally symmetric fermions, analyzing lattice artifacts and presenting initial results in dynamical QCD with 2+1 flavors.
Contribution
It provides a comparative analysis of lattice artifacts for different chiral fermions and presents first dynamical QCD results with domain wall fermions.
Findings
Analysis of lattice artifacts for overlap and domain wall fermions
First dynamical QCD pseudoscalar spectral functions with domain wall fermions
Insights into spectral functions using the Maximum Entropy Method
Abstract
In order to enhance our understanding of spectral functions in lattice QCD obtained with the help of the Maximum Entropy Method, we study meson spectral functions for lattice fermions with chiral symmetry. In particular we analyse lattice artefacts for standard overlap, overlap hypercube and domain wall fermions in the free field limit. We also present first results for pseudoscalar spectral functions in dynamical QCD with 2+1 flavours of domain wall fermions, using data generated by the UKQCD and RBC collaborations on QCDOC machines.
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