Improving meson two-point functions in lattice QCD

Details Improving meson two-point functions in lattice QCD Improving meson two-point functions in lattice QCD

2004-01-06

arxiv.org/abs/hep-lat/0401011v1

Comput.Phys.Commun. 159 (2004) 185-191

Physics

High Energy Physics

High Energy Physics - Lattice

10 pages, 7 figures

Scientific paper

10.1016/j.cpc.2004.02.006

We describe and test a method to compute Euclidean meson two-point functions in lattice QCD. The contribution from the low-lying eigenmodes of the Dirac operator is averaged over all positions of the quark sources. The contribution from the higher modes is estimated in the traditional way with one or a few source points per lattice. In some channels, we observe a significant improvement in the two-point functions for small quark masses.

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