منابع مشابه
Overlap Quark Propagator in Landau Gauge
The properties of the quark propagator in Landau gauge in quenched QCD are examined for the overlap quark action. The overlap quark action satisfies the Ginsparg-Wilson relation and as such provides an exact lattice realization of chiral symmetry. This in turn implies that the quark action is free of O(a) errors. We present results using the standard Wilson fermion kernel in the overlap formali...
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One of the leading uncertainties in lattice calculations involves the connection between the lattice and the continuum renormalized operators. Current estimates [1] show that one-loop perturbation theory for O(a) improved Wilson fermions underestimates quantities like Z P /Z 0 S by ∼ 10% at lattice scales of 2–4 GeV. Furthermore, perturbative estimates of the O(a) improvement coefficients are s...
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ژورنال
عنوان ژورنال: Communications in Theoretical Physics
سال: 2005
ISSN: 0253-6102
DOI: 10.1088/6102/44/5/873