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arXiv · 1012.5047

$N_f = 2+1+1$ flavours of twisted mass quarks: cut-off effects at tree-level of perturbation theory

E. V. Luschevskaya·Krzysztof Cichy
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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.

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E. V. Luschevskaya, Krzysztof Cichy. 2011-01-30. $N_f = 2+1+1$ flavours of twisted mass quarks: cut-off effects at tree-level of perturbation theory. https://doi.org/10.1016/j.nuclphysb.2011.01.018

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