Improvement of N_f=3 lattice QCD with Wilson fermions and tree-level improved gauge action

Abstract

We determine the parameter c_SW required for O(a)-improvement of the three flavor Wilson fermion action together with the tree-level Symanzik improved gauge action. The standard improvement condition is employed for a range of couplings. Additionally, we perform a check of the volume independence of c_SW and provide a preliminary estimate of the lattice spacing at our largest values of g_0^2.

15 pages, 3 figures

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