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Systematic errors in partially-quenched QCD plus QED lattice simulations

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 نشر من قبل Antonin Portelli
 تاريخ النشر 2012
  مجال البحث
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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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