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27 April 2024

» arxiv » arxiv.0705.2340

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Localization and chiral symmetry in 2+1 flavor domain wall QCD
David J. Antonio ; Kenneth C. Bowler ; Peter A. Boyle ; Norman H. Christ ; Michael A. Clark ; Saul D. Cohen ; Chris Dawson ; Alistair Hart ; Balint Joó ; Chulwoo Jung ; Richard D. Kenway ; Shu Li ; Meifeng Lin ; Robert D. Mawhinney ; Christopher M. Maynard ; Shigemi Ohta ; Robe rt J. Tweedie ; Azusa Yamaguchi. ;
Date:	16 May 2007
Subject:	High Energy Physics - Lattice (hep-lat)
Abstract:	We present results for the dependence of the residual mass of domain wall fermions (DWF) on the size of the fifth dimension and its relation to the density and localization properties of low-lying eigenvectors of the corresponding hermitian Wilson Dirac operator for 2+1 flavor domain wall QCD. Using the DBW2 and Iwasaki gauge actions, we generate ensembles of configurations with a $16^3 imes 32$ space-time volume and an extent of 8 in the fifth dimension for the sea quarks. We demonstrate the existence of a regime where the degree of locality, the size of chiral symmetry breaking and the rate of topology change can be acceptable for inverse lattice spacings $a^{-1} ge 1.6$ GeV.
Source:	arXiv, arxiv.0705.2340
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