出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The charm-quark mass is typically not so far from the cutoff a−1 in lattice simulations. Its determinant may then potentially introduce large cutoff effects. We choose the O(a)-improvedWilson formulation and compute the vacuum polarization effects in two rather different observables at one-loop order. One is the quark-antiquark static force and the other the Schrödinger functional coupling; in addition we investigate two more quantities resulting from the latter. In all the cases the lattice artifacts due to the charm-quark are small when compared to the gluonic effects. This indicates that the inclusion of charm-quarks in dynamical fermion simulations is typically not a problem.
