Electromagnetic splittings of hadrons from improved staggered quarks in full QCD

MILC Collaboration

Research output: Contribution to journalConference article

4 Scopus citations

Abstract

We present our initial study of the electromagnetic splittings of charged and neutral mesons, and the violation of Dashen's theorem. Hadron masses are calculated on MILC Nf = 2 + 1 QCD ensembles at lattice spacing ≈ 0.15 fm, together with quenched non-compact U (1) configurations. The O (a2) tadpole improved staggered quark (asqtad) action is used both for the sea quarks and for six different valence quark masses. Chiral extrapolations are performed using partially quenched chiral perturbation theory incorporating electromagnetic corrections.

Original languageEnglish (US)
JournalProceedings of Science
Volume66
StatePublished - Jan 1 2008
Externally publishedYes
Event26th International Symposium on Lattice Field Theory, LATTICE 2008 - Williamsburg, United States
Duration: Jul 14 2008Jul 19 2008

ASJC Scopus subject areas

  • General

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