Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1997-12-09
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.
Bernard Claude
Blum Tom
DeGrand Thomas A.
DeTar Carleton
Gottlieb Steven
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