title: Calculation of the Hadronic Vacuum Polarization Disconnected Contribution to the Muon Anomalous Magnetic Moment.
abstract: We report the first lattice QCD calculation of the hadronic vacuum polarization (HVP) disconnected contribution to the muon anomalous magnetic moment at physical pion mass. The calculation uses a refined noise-reduction technique that enables the control of statistical uncertainties at the desired level with modest computational effort. Measurements were performed on the 48^{3}×96 physical-pion-mass lattice generated by the RBC and UKQCD Collaborations. We find the leading-order hadronic vacuum polarization a_{μ}^{HVP(LO)disc}=-9.6(3.3)(2.3)×10^{-10}, where the first error is statistical and the second systematic.
authors.affiliation: Physics Department, University of Connecticut, Storrs, Connecticut 06269-3046, USA.
authors.forename: T
authors.initials: T
authors.lastname: Blum
authors.affiliation: SUPA, School of Physics, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom.
authors.forename: P A
authors.initials: PA
authors.lastname: Boyle
authors.affiliation: Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA.|RIKEN-BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA.
authors.forename: T
authors.initials: T
authors.lastname: Izubuchi
authors.affiliation: Physics Department, Columbia University, New York, New York 10027, USA.
authors.forename: L
authors.initials: L
authors.lastname: Jin
authors.affiliation: School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom.
authors.forename: A
authors.initials: A
authors.lastname: Jüttner
authors.affiliation: Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
authors.forename: C
authors.initials: C
authors.lastname: Lehner
authors.affiliation: Mathematics & Statistics, York University, Toronto, Ontario M3J 1P3, Canada.|CSSM, University of Adelaide, Adelaide, South Australia 5005, Australia.
authors.forename: K
authors.initials: K
authors.lastname: Maltman
authors.affiliation: CERN, Physics Department, 1211 Geneva 23, Switzerland.
authors.forename: M
authors.initials: M
authors.lastname: Marinkovic
authors.affiliation: SUPA, School of Physics, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom.|School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom.
authors.forename: A
authors.initials: A
authors.lastname: Portelli
authors.affiliation: School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Spraggs