Light Quark Masses with Dynamical Wilson Fermions
Abstract
We determine the masses of the light and the strange quarks in the MS-scheme using our high-statistics lattice simulation of QCD with dynamical Wilson fermions. For the light quark mass we find mlightMS(2 GeV) = 2.7(2) MeV, which is lower than in quenched simulations. For the strange quark, in a sea of two dynamical light quarks, we obtain mstrangeMS(2 GeV) = 140(20) MeV.
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