Light Quark Masses with Dynamical Wilson Fermions
/ Authors
N.Eicker, U.Glassner, S.Gusken, H.Hoeber, P.Lacock, Th.Lippert, G.Ritzenhofer, K.Schilling, G.Siegert, A.Spitz
and 2 more authors
/ 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 .