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

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 us...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2006-08, Vol.47 (2), p.453-472
Main Authors: Farchioni, F., Hofmann, P., Jansen, K., Montvay, I., Münster, G., Scholz, E.E., Scorzato, L., Shindler, A., Ukita, N., Urbach, C., Wenger, U., Wetzorke, I.
Format: Article
Language:English
Subjects:
Chiral dynamics
Computer simulation
Flavor (particle physics)
Perturbation methods
Perturbation theory
Quantum chromodynamics
Quarks
Simulation
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Summary: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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s2006-02549-y