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arXiv · 1201.2787

Systematic errors in partially-quenched QCD plus QED lattice simulations

Antonin Portelli·Stephan Dürr·Zoltán Fodor·Julien Frison·Christian Hoelbling·Sandor D. Katz·Stefan Krieg·Thorsten Kurth·Laurent Lellouch·Thomas Lippert·Alberto Ramos·Kálmán K. Szabó
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Abstract

At the precision reached in current lattice QCD calculations, electromagnetic effects are becoming numerically relevant. Here, electromagnetic effects are included by superimposing $\mathrm{U}(1)$ degrees of freedom on $N_f = 2+1$ QCD configurations from the Budapest-Marseille-Wuppertal Collaboration. We present preliminary results for the electromagnetic corrections to light pseudoscalars mesons masses and discuss some of the associated systematic errors.

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Antonin Portelli, Stephan Dürr, Zoltán Fodor, Julien Frison, Christian Hoelbling, Sandor D. Katz, Stefan Krieg, Thorsten Kurth, Laurent Lellouch, Thomas Lippert, Alberto Ramos, Kálmán K. Szabó. 2012-01-13. Systematic errors in partially-quenched QCD plus QED lattice simulations. https://arxiv.org/abs/1201.2787

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