Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point Chakraborty, B. Davies, C. T. H. DeTar, C. El-Khadra, A. X. Gámiz Sánchez, María Elvira Gottlieb, Steven Hatton, D. Koponen, J. Kronfeld, A. S. Laiho, J. Lepage, G. P. Liu, Yuzhi Mackenzie, P. B. Simone, J. N. Sugar, R. Toussaint, D. Van de Water, R. S. Vaquero, A. All 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. 2018-05-30T09:58:25Z 2018-05-30T09:58:25Z 2018 journal article Chakraborty, 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] http://hdl.handle.net/10481/51198 10.1103/PhysRevLett.120.152001 eng info:eu-repo/grantAgreement/EC/FP7/291763 http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España American Physical Society