arXiv:hep-lat/0512017·v2·High Energy Physics — Lattice
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🇩🇪 · N. Ukita🇩🇪 · C. Urbach🇩🇪 · U. Wenger🇩🇪 · I. Wetzorke🇩🇪
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.
Comments: 53 pages, 11 tables, 18 figures; discussion extended