Abstract
The effect of sea quark electromagnetic charge on meson masses is investigated, and first results for full low-energy constants are presented. The electromagnetic charge for sea quarks is incorporated in quenched QCD lattice simulations by a reweighting method. The reweighting factor, which connects quenched and unquenched QED, is estimated using a stochastic method on flavor dynamical domain-wall quark ensembles.
2 More- Received 2 March 2012
DOI:https://doi.org/10.1103/PhysRevLett.109.072002
© 2012 American Physical Society