One-loop lattice artifacts of a dynamical charm quark

Details One-loop lattice artifacts of a dynamical charm quark One-loop lattice artifacts of a dynamical charm quark

2011-09-11

arxiv.org/abs/1109.2303v1

Physics

High Energy Physics

High Energy Physics - Lattice

18 pages, 7 figures

Scientific paper

For a few observables in O(a) improved lattice QCD, we compute discretization effects arising from the vacuum polarization of a heavy quark at one-loop order. In particular, the force between static quarks, the running coupling in the Schrodinger functional and a related quantity, {\bar \upsilon}, are considered. Results show that the cutoff effects of a dynamical charm quark are typically smaller than those present in the pure gauge theory. This perturbative result is a good indication that dynamical charm quarks are feasible already now.

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