Quark Loop Effects with an Improved Staggered Action

Details Quark Loop Effects with an Improved Staggered Action Quark Loop Effects with an Improved Staggered Action

2000-10-30

arxiv.org/abs/hep-lat/0010065v1

Nucl.Phys.Proc.Suppl.94:237-241,2001

Physics

High Energy Physics

High Energy Physics - Lattice

5 pages, 7 figures, Lattice 2000 (Spectrum)

Scientific paper

10.1016/S0920-5632(01)00964-1

We have been studying effects of dynamical quarks on various hadronic observables, using our recently formulated improvement for staggered fermions. To illustrate improvement, we show that the light hadron spectrum in the quenched approximation gives remarkably good scaling. We highlight three new results: (1) We find no apparent quark loop effects in the Edinburgh plot with 2+1 flavors of dynamical quarks at a = 0.14 fm. (2) We show that dynamical quarks modify the shape of the heavy quark potential. (3) We present results hinting at meson decay effects in light hadron spectroscopy.

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