Chiral perturbation theory for partially quenched twisted mass lattice QCDG. Münster1, C. Schmidt1 and E. Scholz2
1 Institut für Theoretische Physik, Universität Münster Wilhelm-Klemm-Str. 9, D-48149 Münster, Germany
2 Deutsches Elektronen-Synchrotron DESY Notkestr. 85, D-22603 Hamburg, Germany
received 11 February 2004; accepted in final form 6 October 2004
published online 29 October 2004
Partially quenched Quantum Chromodynamics with Wilson fermions on a lattice is considered in the framework of chiral perturbation theory in the mesonic sector. Two degenerate quark flavours are associated with a chirally twisted mass term. The pion masses and decay constants 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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