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Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point

dc.contributor.authorChakraborty, B.
dc.contributor.authorDavies, C. T. H.
dc.contributor.authorDeTar, C.
dc.contributor.authorEl-Khadra, A. X.
dc.contributor.authorGámiz Sánchez, María Elvira 
dc.contributor.authorGottlieb, Steven
dc.contributor.authorHatton, D.
dc.contributor.authorKoponen, J.
dc.contributor.authorKronfeld, A. S.
dc.contributor.authorLaiho, J.
dc.contributor.authorLepage, G. P.
dc.contributor.authorLiu, Yuzhi
dc.contributor.authorMackenzie, P. B.
dc.contributor.authorSimone, J. N.
dc.contributor.authorSugar, R.
dc.contributor.authorToussaint, D.
dc.contributor.authorVan de Water, R. S.
dc.contributor.authorVaquero, A.
dc.date.accessioned2018-05-30T09:58:25Z
dc.date.available2018-05-30T09:58:25Z
dc.date.issued2018
dc.identifier.citationChakraborty, B; et. al. Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point. Physical review letters 120, 152001 (2018) [http://hdl.handle.net/10481/51198]es_ES
dc.identifier.urihttp://hdl.handle.net/10481/51198
dc.description.abstractAll lattice-QCD calculations of the hadronic-vacuum-polarization contribution to the muon's anomalous magnetic moment to-date have been performed with degenerate up- and down-quark masses. Here we calculate directly the strong-isospin-breaking correction to aHVPμ for the first time with physical values of mu and md and dynamical u, d, s, and c quarks, thereby removing this important source of systematic uncertainty. We obtain a relative shift to be applied to lattice-QCD results obtained with degenerate light-quark masses of δaHVP,mu≠mdμ= +1.5(7)%, in agreement with estimates from phenomenology and a recent lattice-QCD calculation with unphysically heavy pions.es_ES
dc.description.sponsorshipWe thank John Campbell, Vera Gülpers, Fred Jegerlehner, Laurent Lellouch, and Silvano Simula for useful discussions. Computations for this work were carried out with resources provided by the USQCD Collaboration, the National Energy Research Scientific Computing Center and the Argonne Leadership Computing Facility, which are funded by the Office of Science of the U.S. Department of Energy; and with resources provided by the National Institute for Computational Science and the Texas Advanced Computing Center, which are funded through the National Science Foundation’s Teragrid/XSEDE Program. Computations were also carried out on the Darwin Supercomputer at the DiRAC facility, which is jointly funded by the U.K. Science and Technology Facility Council, the U.K. Department for Business, Innovation and Skills, and the Universities of Cambridge and Glasgow. This work utilized the RMACC Summit supercomputer, which is supported by the National Science Foundation (Grants No. ACI-1532235 and No. ACI-1532236), the University of Colorado Boulder, and Colorado State University. The Summit supercomputer is a joint effort of the University of Colorado Boulder and Colorado State University. This research is part of the Blue Waters sustained-petascale computing project, which is supported by the National Science Foundation (Grants No. OCI- 0725070 and No. ACI-1238993) and the state of Illinois. Blue Waters is a joint effort of the University of Illinois at Urbana-Champaign and its National Center for Supercomputing Applications. This work was supported in part by the U.S. Department of Energy under Grants No. DE-AC05-06OR23177 (B. C.), No. DE-SC0010120 (S. G.), No. DE-SC0015655 (A. X. K.), No. DESC0009998 (J. L.), No. DE-SC0010005 (E. T. N.), No. DE-FG02-13ER41976 (D. T.), by the U.S. National Science Foundation under Grants No. PHY14-17805 (J. L.), No. PHY14-14614 (C. D., A. V.), No. PHY13- 16222 (G. P. L.), No. PHY12-12389 (Y. L.), and No. PHY13-16748 and No. PHY16-20625 (R. S.); by the Royal Society, STFC and Wolfson Foundation (C. T. H. D., D. H., J. K.); by the MINECO (Spain) under Grants No. FPA2013-47836-C-1-P and No. FPA2016- 78220-C3-3-P (E. G.); by the Junta de Andalucía (Spain) under Grant No. FQM-101 (E. G.) by the Fermilab Distinguished Scholars Program (A. X. K.); by the German Excellence Initiative and the European Union Seventh Framework Program under grant agreement No. 291763 as well as the European Union’s Marie Curie COFUND program (A. S. K.); by the Blue Waters PAID program (Y. L.); and by the U.K. STFC under Grants No. ST/N005872/1 and ST/P00055X/1 (C.M.). Brookhaven National Laboratory is supported by the U.S. Department of Energy under Contract No. DESC0012704. Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02- 07CH11359 with the United States Department of Energy, Office of Science, Office of High Energy Physics. The U.S. Government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for U.S. Government purposes.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/291763es_ES
dc.rightsAtribución 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.titleStrong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Pointes_ES
dc.typejournal articlees_ES
dc.rights.accessRightsopen accesses_ES
dc.identifier.doi10.1103/PhysRevLett.120.152001


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