Electromagnetic splitting of quark and pseudoscalar meson masses from dynamical QCD + QED

D. Pleiter; G. Schierholz; H. St\"uben; J.M. Zanotti; P.E.L. Rakow; R.D. Young; R. Horsley; Y. Nakamura

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Electromagnetic splitting of quark and pseudoscalar meson masses from dynamical QCD + QED

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arxiv 1311.4554 v1 pith:VRYH6XCY submitted 2013-11-18 hep-lat hep-phnucl-th

R. Horsley , Y. Nakamura , D. Pleiter , P.E.L. Rakow , G. Schierholz , H. Stüben , R.D. Young , J.M. Zanotti This is my paper

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keywords electromagneticdynamicaleffectsmassquarkanalysisbecomebreaking

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Lattice QCD simulations are now reaching a precision where electromagnetic corrections from QED become important. In investigating the effects of SU(3) breaking due to quark mass differences within QCD, a group-theoretical analysis of the mass dependence greatly helped us organize our results. We now do the same with electromagnetic charge effects by extending the calculations to dynamical 1+1+1 flavor QCD + QED.

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