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Chiral perturbation theory for twisted mass QCD

Gernot Münster·Christian Schmidt·Enno E. Scholz
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Abstract

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 masses and decay constants are calculated in next-to-leading order including terms linear in the lattice spacing a. We treat both unquenched and partially quenched QCD. We also discuss the phase structure of twisted mass lattice QCD.

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Gernot Münster, Christian Schmidt, Enno E. Scholz. 2004-10-27. Chiral perturbation theory for twisted mass QCD. https://doi.org/10.1016/j.nuclphysbps.2004.11.117

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