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On the extraction of spectral quantities with open boundary conditions
Mattia Bruno, Piotr Korcyl, Tomasz Korzec +2
We discuss methods to extract decay constants, meson masses and gluonic observables in the presence of open boundary conditions. The ensembles have been generated by the CLS effort…
Physical and cut-off effects of heavy sea quarks
Francesco Knechtli, Andreas Athenodorou, Mattia Bruno +4
We simulate a theory with two dynamical O() improved Wilson quarks whose mass ranges from a factor eight up to a factor two below the charm quark mass and at three values of…
Simulation of QCD with N_f=2+1 flavors of non-perturbatively improved Wilson fermions
Mattia Bruno, Dalibor Djukanovic, Georg P. Engel +11
We describe a new set of gauge configurations generated within the CLS effort. These ensembles have N_f=2+1 flavors of non-perturbatively improved Wilson fermions in the sea with t…
On the effects of heavy sea quarks at low energies
Mattia Bruno, Jacob Finkenrath, Francesco Knechtli +2
We present a factorisation formula for the dependence of light hadron masses and low energy hadronic scales on the mass of a heavy quark: apart from an overall factor , rati…
Exceptional thermodynamics: The equation of state of G(2) gauge theory
Mattia Bruno, Michele Caselle, Marco Panero +1
We present a lattice study of the equation of state in Yang-Mills theory based on the exceptional G(2) gauge group. As is well-known, at zero temperature this theory shares many qu…
Topological susceptibility and the sampling of field space in lattice QCD simulations
Mattia Bruno, Stefan Schaefer, Rainer Sommer
We present a measurement of the topological susceptibility in two flavor QCD. In this observable, large autocorrelations are present and also sizable cutoff effects have to be face…