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arxiv: 1606.01228 · v1 · pith:5KADKYEWnew · submitted 2016-06-03 · ✦ hep-lat · hep-ph

Electromagnetic effects on the light pseudoscalar mesons and determination of m_u/m_d

MILC Collaboration: S. Basak (1) , A. Bazavov (2) , C. Bernard (3) , C. DeTar (4) , E. Freeland (5) , J. Foley (4) , Steven Gottlieb (6) , U.M. Heller (7)
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J. Komijani (3) J. Laiho (8) L. Levkova (3) J. Osborn (9) R.L. Sugar (10) A. Torok (6) D. Toussaint (11) R.S. Van de Water (12) R. Zhou (12) ((1) NISER (2) University of Iowa (3) Washington University (4) University of Utah (5) School of the Art Institute of Chicago (6) Indiana University (7) American Physical Society (8) Syracuse University (9) Argonne National Laboratory (10) University of California Santa Barbara (11) University of Arizona (12) Fermilab)
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classification ✦ hep-lat hep-ph
keywords approxeffectselectromagneticlatticelightmesonsasqtadcalculations
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The MILC Collaboration has completed production running of electromagnetic effects on light mesons using asqtad improved staggered quarks. In these calculations, we use quenched photons in the noncompact formalism. We study four lattice spacings from $\approx\!0.12\:$fm to $\approx\!0.045\:$fm. To study finite-volume effects, we used six spatial lattice sizes $L/a=12$, 16, 20, 28, 40, and 48, at $a\!\approx\!0.12\:$fm. We update our preliminary values for the correction to Dashen's theorem ($\epsilon$) and the quark-mass ratio $m_u/m_d$.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. New high-precision $b$, $c$, and $s$ masses from pseudoscalar-pseudoscalar correlators in $n_f=4$ lattice QCD

    hep-lat 2025-08 accept novelty 5.0

    New high-precision MS-bar masses m_b(m_b, n_f=5)=4.1923(63) GeV, m_c(3 GeV, n_f=4)=0.9813(34) GeV, and m_s(3 GeV, n_f=4)=83.39(26) MeV from HISQ lattice QCD correlators including quenched QED.

  2. FLAG Review 2024

    hep-lat 2024-11 accept novelty 2.0

    The FLAG 2024 review provides updated averages of lattice QCD determinations for quark masses, decay constants, form factors, mixing parameters, and nucleon matrix elements.