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DeGrand, Thomas; Schaefer, Stefan
Computer physics communications, 06/2004, Letnik: 159, Številka: 3Journal Article
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.
