Simulation of QCD with N_{f} = 2 + 1 flavors of non-perturbatively improved Wilson fermions
author:
Bruno Mattia, Djukanovic Dalibor, Engel Georg P., Francis Anthony, Herdoiza Gregorio, Horch Hanno, Korcyl Piotr , Korzec Tomasz, Papinutto Mauro, Schaefer Stefan, Scholz Enno E., Simeth Jakob, Simma Hubert, Söldner Wolfgang
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 the Lüscher-Weisz action used for the gluons. Open boundary conditions in time are used to address the problem of topological freezing at small lattice spacings and twisted-mass reweighting for improved stability of the simulations. We give the bare parameters at which the ensembles have been generated and how these parameters have been chosen. Details of the algorithmic setup and its performance are presented as well as measurements of the pion and kaon masses alongside the scale parameter t_{0}.