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Computing the Hadronic Vacuum Polarization Contribution to the Muon Anomalous Magnetic Moment in Lattice QCD

ORAL

Abstract

The Fermilab muon g-2 experiment is expected to reach its precision goal of 120 ppb within the next two years. The uncertainty in Standard Model predictions of this quantity is dominated by hadronic corrections. I will report on the status of the Fermilab, HPQCD, and MILC Collaborations' multi-year project to compute the hadronic vacuum polarization contribution (HVP) in lattice QCD at sub-percent precision. In our newly-generated data set we employ noise reduction techniques to handle large statistical errors in contributions from light quarks, which comprise roughly 90% of the total HVP. I will present preliminary results on the light quark connected contribution to the HVP as well as other HVP observables obtained from this new data set.

* This research is funded in part by the Office of Science of the U.S. Department of Energy, acting under Contract No. DE-SC0015655, and under DOE Funding Opportunity Announcement Scientific Discovery through Advanced Computing: High Energy Physics, LAB 22-2580 and under Contract No. DE-AC02-07CH11359 and Subcontract No. 694781.

Presenters

  • Michael Lynch

    University of Illinois, Urbana-Champaign

Authors

  • Michael Lynch

    University of Illinois, Urbana-Champaign