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 m light MS (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 m strange MS (2 GeV ) = 140(20) MeV .
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