Localization and chiral symmetry in 2+1 flavor domain wall QCD

Details Localization and chiral symmetry in 2+1 flavor domain wall QCD Localization and chiral symmetry in 2+1 flavor domain wall QCD

2007-05-16

arxiv.org/abs/0705.2340v4

Phys.Rev.D77:014509,2008

Physics

High Energy Physics

High Energy Physics - Lattice

59 Pages, 23 figures, 1 MPG linked

Scientific paper

10.1103/PhysRevD.77.014509

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 relevant to simulations of 2+1 flavor domain wall QCD. Using the DBW2 and Iwasaki gauge actions, we generate ensembles of configurations with a $16^3\times 32$ 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.

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