Simulations of N_f=3+1 QCD and first physical results
by
Francesco Knechtli(Bergische Universität Wuppertal)
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Europe/Berlin
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Description
We produced a set of gauge configurations generated with a new N_f=3+1
massive renormalization and improvement scheme for three degenerate
light quarks with a mass that equals the average light quark mass in
nature and a physical charm quark mass, and a non-perturbatively
determined clover coefficient for dynamical Wilson quarks on the
lattice. We present the details of the algorithmic setup and tuning
procedure of ensembles with three different volumes. We determine the
lattice spacings of the generated ensembles assuming decoupling of charm
at low energies. We discuss finite volume effects and lattice artifacts
and present physical results for the charmonium spectrum and
dimensionless ratios of low energy scales in a first continuum limit study.
