Numerical simulations with two flavours of twisted-mass Wilson quarks and DBW2 gauge action

F. Farchioni , P. Hofmann , K. Jansen , I. Montvay , G. Muenster , E.E. Scholz , L. Scorzato , A. Shindler

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N. Ukita C. Urbach U. Wenger I. Wetzorke

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classification ✦ hep-lat

keywords gaugeactiondatadbw2numericalsimulationsvalueswilson

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Discretisation errors in two-flavour lattice QCD with Wilson-quarks and DBW2 gauge action are investigated by comparing numerical simulation data at two values of the bare gauge coupling. Both non-zero and zero twisted mass values are considered. The results, including also data from simulations using the Wilson plaquette gauge action, are compared to next-to-leading order chiral perturbation theory formulas.

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Numerical simulations with two flavours of twisted-mass Wilson quarks and DBW2 gauge action

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