Light Hadron Masses in QCD with Valence Wilson Quarks at beta=6.25 from a Parallel PC Cluster
Z. H. Mei, X. Q. Luo, E. B. Gregory
Abstract
We present results for π, ρ and proton and Δ masses from our recently built Pentium cluster. The previous results for quenched Wilson fermions by MILC and GF11 collaborations are compared at β=6/g2=5.7 and 5.85 with the same parameters on the 83×32 lattice. New data are shown at β=6.25 on the 123×36 and 163×32 lattices. Such a larger β value is useful for extrapolating the lattice results to the continuum limit. The smearing technique is systematically investigated and shown to greatly improve the spectrum data.
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