Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/100939
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dc.contributor.authorHorsley, R.en
dc.contributor.authorNakamura, Y.en
dc.contributor.authorPerlt, H.en
dc.contributor.authorPleiter, D.en
dc.contributor.authorRakow, P.en
dc.contributor.authorSchierholz, G.en
dc.contributor.authorSchiller, A.en
dc.contributor.authorStokes, R.en
dc.contributor.authorStüben, H.en
dc.contributor.authorYoung, R.en
dc.contributor.authorZanotti, J.en
dc.contributor.authorfor, T.en
dc.date.issued2016en
dc.identifier.citationJournal of High Energy Physics, 2016; 2016(4):093-1-093-24en
dc.identifier.issn1126-6708en
dc.identifier.issn1029-8479en
dc.identifier.urihttp://hdl.handle.net/2440/100939-
dc.description.abstractIn this paper we present results on the pseudoscalar meson masses from a fully dynamical simulation of QCD+QED, concentrating particularly on violations of isospin symmetry. We calculate the π⁺-π⁰ splitting and also look at other isospin violating mass differences. We have presented results for these isospin splittings in [1]. In this paper we give more details of the techniques employed, discussing in particular the question of how much of the symmetry violation is due to QCD, arising from the different masses of the u and d quarks, and how much is due to QED, arising from the different charges of the quarks. This decomposition is not unique, it depends on the renormalisation scheme and scale. We suggest a renormalisation scheme in which Dashen’s theorem for neutral mesons holds, so that the electromagnetic self-energies of the neutral mesons are zero, and discuss how the self-energies change when we transform to a scheme such as M S, in which Dashen’s theorem for neutral mesons is violated.en
dc.description.statementofresponsibilityR. Horsley, Y. Nakamura, H. Perlt, D. Pleiter, P. E. L. Rakow, G. Schierholz, A. Schiller, R. Stokes, H. Stüben, R. D. Young, J. M. Zanotti for the QCDSF and UKQCD collaborationsen
dc.language.isoenen
dc.publisherSpringeren
dc.rightsOpen Access, © The Authors.en
dc.subjectLattice QCD; lattice gauge field theoriesen
dc.titleQED effects in the pseudoscalar meson sectoren
dc.typeJournal articleen
dc.identifier.rmid0030047455en
dc.identifier.doi10.1007/JHEP04(2016)093en
dc.relation.granthttp://purl.org/au-research/grants/arc/FT120100821en
dc.relation.granthttp://purl.org/au-research/grants/arc/DP140103067en
dc.relation.granthttp://purl.org/au-research/grants/arc/FT100100005en
dc.identifier.pubid248145-
pubs.library.collectionPhysics publicationsen
pubs.library.teamDS10en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidYoung, R. [0000-0002-4527-1811]en
dc.identifier.orcidZanotti, J. [0000-0002-3936-1597]en
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