arXiv:1202.6018·v2·High Energy Physics — Lattice
Full QED+QCD Low-Energy Constants through Reweighting
Tomomi Ishikawa🇺🇸 · Thomas Blum🇺🇸 · Masashi Hayakawa🇯🇵 · Taku Izubuchi🇺🇸 · Chulwoo Jung🇺🇸 · Ran Zhou🇺🇸
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.
Comments: 5 pages, 9 figures, REVTeX 4.1, v2: published version