Light hadronic physics using domain wall fermions in quenched lattice QCD

Details Light hadronic physics using domain wall fermions in quenched lattice QCD Light hadronic physics using domain wall fermions in quenched lattice QCD

2000-09-18

arxiv.org/abs/hep-lat/0009023v2

Nucl.Phys.Proc.Suppl. 94 (2001) 277-280

Physics

High Energy Physics

High Energy Physics - Lattice

To appear in the proceedings of Lattice 2000 (spectrum), Bangalore, India. Work done as part of the RIKEN/BNL/Columbia Collabo

Scientific paper

10.1016/S0920-5632(01)00931-8

In the past year domain wall fermion simulations have moved from exploratory stages to the point where systematic effects can be studied with different gauge couplings, volumes, and lengths in the fifth dimension. Results are presented here for the chiral condensate, the light hadron spectrum, and the strange quark mass. We focus especially on the pseudoscalar meson mass and show that, in small volume, the correlators used to compute it can be contaminated to different degrees by topological zero modes. In large volume a nonlinear extrapolation to the chiral limit, e.g. as expected from quenched chiral perturbation theory, is needed in order to have a consistent picture of low energy chiral symmetry breaking effects.

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