paper

Full QED+QCD Low-Energy Constants through Reweighting

arXiv:1202.6018 · doi:10.1103/PhysRevLett.109.072002

Abstract

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.

5 pages, 9 figures, REVTeX 4.1, v2: published version

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