Chiral perturbation theory for lattice QCD with a twisted mass termG. Münster and C. Schmidt
Institut für Theoretische Physik, Universität Münster Wilhelm-Klemm-Str. 9, D-48149 Münster, Germany firstname.lastname@example.org
(Received 25 November 2003; accepted in final form 31 March 2004)
Quantum chromodynamics on a lattice with Wilson fermions and a chirally twisted mass term for two degenerate quark flavours is considered in the framework of chiral perturbation theory. The pion mass and decay constant are calculated in next-to-leading order including terms linear in the lattice spacing a.
11.15.Ha - Lattice gauge theory.
12.38.Gc - Lattice QCD calculations.
12.39.Fe - Chiral Lagrangians.
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