Dependence of QCD hadron masses on the number of dynamical quarks

Details Dependence of QCD hadron masses on the number of dynamical quarks Dependence of QCD hadron masses on the number of dynamical quarks

1997-05-21

arxiv.org/abs/hep-lat/9705029v1

Nucl.Phys.Proc.Suppl. 53 (1997) 216

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 3 figures

Scientific paper

We have studied the hadron spectrum while varying the number of light dynamical quarks when the physical lattice spacing and volume are held fixed relative to the rho mass. For two and zero flavors of staggered fermions, we find the nucleon to rho mass ratios (extrapolated to zero valence quark mass) are very similar. However, for four flavors the ratio is 7% (2 standard deviations) above the two flavor result.

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