Quenched hadron spectroscopy with improved staggered quark action

Details Quenched hadron spectroscopy with improved staggered quark action Quenched hadron spectroscopy with improved staggered quark action

1997-12-09

arxiv.org/abs/hep-lat/9712010v2

Phys.Rev.D58:014503,1998

Physics

High Energy Physics

High Energy Physics - Lattice

New references added

Scientific paper

10.1103/PhysRevD.58.014503

We investigate light hadron spectroscopy with an improved quenched staggered quark action. We compare the results obtained with an improved gauge plus an improved quark action, an improved gauge plus standard quark action, and the standard gauge plus standard quark action. Most of the improvement in the spectroscopy results is due to the improved gauge sector. However, the improved quark action substantially reduces violations of Lorentz invariance, as evidenced by the meson dispersion relations.

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