Numerical simulations with two flavours of twisted-mass Wilson quarks and DBW2 gauge action
/ Authors
F. Farchioni, P. Hofmann, K. Jansen, I. Montvay, G. Münster, E. Scholz, L. Scorzato, A. Shindler, N. Ukita, C. Urbach
and 2 more authors
/ Abstract
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.
Journal: The European Physical Journal C - Particles and Fields