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Master-field simulations of QCD

30 Jul 2021, 05:15
15m
Oral presentation Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Patrick Fritzsch (Trinity College Dublin)

Description

We report on the first master-field simulations of QCD with 2+1 dynamical quark flavours using non-perturbatively improved stabilised Wilson fermions. Our simulations are performed at a lattice spacing of 0.095 fm with 96 and 192 points in each direction. With $Lm_\pi$=12.5 and 25, both lattices feature a pion and kaon mass of about 270 and 450 MeV. This setup is compatible with a chiral trajectory at fixed trace of the quark mass matrix and allows for comparisons to standard large-scale simulations. In this talk, we present our algorithmic setup and performance measures, and report about our experience in thermalising large master-field lattices with fermions.

Primary authors

Patrick Fritzsch (Trinity College Dublin) Marco Cè (CERN) Mattia Bruno (CERN) John Bulava (DESY-Zeuthen) Anthony Sebastian Francis (Universität Bern (CH)) Jeremy Green (CERN) Maxwell Hansen (The University of Edinburgh (GB)) Martin Lüscher (CERN & Universität Bern) Antonio Rago (University of Plymouth (GB))

Presentation materials