Determination of Light and Strange Quark Masses from Full Lattice QCD
Abstract
We compute the light and strange quark masses ml = (mu+md)/2 and ms, respectively, in full lattice QCD with Nf=2 flavors of light dynamical quarks. The renormalization constants, which convert bare quark masses into renormalized quark masses, are computed nonperturbatively, including the effect of quark-line disconnected diagrams. We obtain ml=4.7(2)(3) MeV and ms=119(5)(8) MeV in the MSbar scheme at the scale 2 GeV.
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