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Evaluation of the three-flavor quark-disconnected contribution to the muon anomalous magnetic moment from experimental data

Diogo Boito, Maarten Golterman, Kim Maltman, and Santiago Peris
Phys. Rev. D 105, 093003 – Published 16 May 2022

Abstract

We point out that the sum of the strange-quark-connected and full three-flavor quark-disconnected contributions to the leading-order hadronic vacuum polarization contribution, aμLO,HVP, to the anomalous magnetic moment of the muon is a physical observable, and we provide a data-based determination of this quantity in the isospin limit. The result, 40.1(1.5)×1010 or 38.7(2.0)×1010, depending on which data compilation is used, serves as a target of comparison for lattice calculations of the same isospin-limit combination. Subtracting from this result the average of lattice determinations of the strange-quark-connected contribution, one also obtains an alternate determination of the isospin-limit three-flavor disconnected contribution to aμLO,HVP. The result of this determination, 13.3(1.5)×1010 or 14.6(2.0)×1010, depending on which data compilation is used, agrees well and is competitive with the most precise current lattice determination.

  • Figure
  • Received 22 March 2022
  • Accepted 22 April 2022

DOI:https://doi.org/10.1103/PhysRevD.105.093003

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
  1. Physical Systems
  1. Techniques
Particles & Fields

Authors & Affiliations

Diogo Boito1,2, Maarten Golterman3,4, Kim Maltman5,6, and Santiago Peris4

  • 1Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13570-970 São Carlos, São Paulo, Brazil
  • 2University of Vienna, Faculty of Physics, Boltzmanngasse 5, A-1090 Wien, Austria
  • 3Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132, USA
  • 4Department of Physics and IFAE-BIST, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
  • 5Department of Mathematics and Statistics, York University, Toronto, Ontario M3J 1P3, Canada
  • 6CSSM, University of Adelaide, Adelaide, South Australia 5005, Australia

See Also

Data-based determination of the isospin-limit light-quark-connected contribution to the anomalous magnetic moment of the muon

Diogo Boito, Maarten Golterman, Kim Maltman, and Santiago Peris
Phys. Rev. D 107, 074001 (2023)

Article Text

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Issue

Vol. 105, Iss. 9 — 1 May 2022

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