name

Lingling Wu

refid

17719

email

lingling@physics.columbia.edu

title

Chiral Symmetry Breaking for Domain Wall Fermions in Quenched Lattice QCD

collaboration

RIKEN-BNL-Columbia Collaboration

abstract

The domain wall fermion formulation exhibits full chiral
symmetry for finite lattice spacing except for the effects
of mixing between the domain walls. Close to the continuum
limit these symmetry breaking effects should be described
by a single residual mass. We determine this mass from
the conservation law obeyed by the conserved axial
current in quenched simulations with beta=5.7 and 6.0
and domain wall separations varying between 12 and 64 on
8^3x32 and 16^3x32 lattices. Using the resulting values
for the residual mass we perform two complete and independent
calculations of the pion decay constant. Good agreement is
found between these two methods and with experiment.

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