Full QED+QCD low-energy constants through reweighting.

نویسندگان

  • Tomomi Ishikawa
  • Thomas Blum
  • Masashi Hayakawa
  • Taku Izubuchi
  • Chulwoo Jung
  • Ran Zhou
چکیده

The effect of sea quark electromagnetic charge on meson masses is investigated, and first results for full QED+QCD low-energy constants are presented. The electromagnetic charge for sea quarks is incorporated in quenched QED+full QCD lattice simulations by a reweighting method. The reweighting factor, which connects quenched and unquenched QED, is estimated using a stochastic method on 2+1 flavor dynamical domain-wall quark ensembles.

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عنوان ژورنال:
  • Physical review letters

دوره 109 7  شماره 

صفحات  -

تاریخ انتشار 2012