New results on cut-off effects in spectroscopy with the fixed point action

Details New results on cut-off effects in spectroscopy with the fixed point action New results on cut-off effects in spectroscopy with the fixed point action

2004-11-24

arxiv.org/abs/hep-lat/0411034v2

JHEP0412:030,2004

Physics

High Energy Physics

High Energy Physics - Lattice

15 pages, 11 figures, reference corrected

Scientific paper

10.1088/1126-6708/2004/12/030

Our study on the cut-off effects in quenched light hadron spectroscopy and pion scattering length with the fixed point action is extended by results obtained at a lattice spacing a=0.102 fm in a box of size L=1.8 fm. The cut-off effects are small, but clearly seen as the resolution is increased from a=0.153 fm to a=0.102 fm. In the quark mass region where the errors are small and under control, our results on the APE plot lie close to the extrapolated numbers of the CP-PACS Collaboration.

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