Scaling test of two-flavor O(a)-improved lattice QCD

Michele Della Morte , Patrick Fritzsch , Harvey B. Meyer , Hubert Simma , Rainer Sommer , Shinji Takeda , Oliver Witzel , Ulli Wolff

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classification ✦ hep-lat

keywords scalingimprovedlambdaobservablestestboundarycernicite

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We report on a scaling test of several mesonic observables in the non-perturbatively O(a) improved Wilson theory with two flavors of dynamical quarks. The observables are constructed in a fixed volume of 2.4fm x (1.8fm)^3 with Schroedinger functional boundary conditions. No significant scaling violations are found. Using the kaon mass determined in \cite{cernI}, we update our estimate of the Lambda parameter to Lambda^(2)_{msbar}/m_K = 0.52(6).

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Scaling test of two-flavor O(a)-improved lattice QCD

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