flavours of twisted mass quarks: cut-off effects at tree-level of perturbation theory
arXiv:1012.5047 · doi:10.1016/j.nuclphysb.2011.01.018
Abstract
We present a calculation of cut-off effects at tree-level of perturbation theory for the K and D mesons using the twisted mass formulation of lattice QCD. The analytical calculations are performed in the time-momentum frame. The relative sizes of cut-off effects are compared for the pion, the kaon and the D meson masses. In addition, different realizations of maximal twist condition are considered and the corresponding cut-off effects are analyzed.
25 pages, 7 figures, final version to appear in Nucl. Phys. B, new appendix added, minor changes
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