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Numerical simulations with two flavours of twisted-mass Wilson quarks and DBW2 gauge action |
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| Authors: | F. Farchioni P. Hofmann K. Jansen I. Montvay G. Münster E.E. Scholz L. Scorzato A. Shindler N. Ukita C. Urbach U. Wenger I. Wetzorke |
| Affiliation: | 1. Institut für Theoretische Physik, Universit?t Münster, Wilhelm-Klemm-Strasse 9, 48149, Münster, Germany 2. NIC/DESY Zeuthen, Platanenallee 6, 15738, Zeuthen, Germany 3. Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603, Hamburg, Germany 4. Institut für Physik, Humboldt Universit?t zu Berlin, 12489, Berlin, Germany 5. Institut für Theoretische Physik, Freie Universit?t Berlin, Arnimallee 14, 14196, Berlin, Germany |
| Abstract: | 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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