Data-Driven Determination of the Light-Quark Connected Component of the Intermediate-Window Contribution to the Muon g−2

Authors:
Open Access
Publisher website
Google Scholar
Abstract
We present the first data-driven result for aμwin,lqc, the isospin-limit light-quark connected component of the intermediate-window Hadronic-vacuum-polarization contribution to the muon anomalous magnetic moment. Our result, (198.8±1.1)×10−10, is in significant tension with eight recent mutually compatible high-precision lattice-QCD determinations, and provides enhanced evidence for a puzzling discrepancy between lattice and data-driven determinations of the intermediate-window quantity, one driven largely by a difference in the light-quark connected component.
Funding Information
  • U.S. Department of Energy (DE-SC-0013682)
  • Office of Science
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (2021/06756-6)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (308979/2021-4)
  • Royal Society (URF\R1\231503)
  • Science and Technology Facilities Council (ST/S000925)
  • Horizon 2020 Framework Programme
  • H2020 Marie Sklodowska-Curie Actions (858199)
  • Ministerio de Ciencia e Innovación (PID2020–112965 GB-I00)
  • Agencia Estatal de Investigación
  • Generalitat de Catalunya (2021 SGR 00649)
  • Centres de Recerca de Catalunya
  • Natural Sciences and Engineering Research Council of Canada

This publication has 58 references indexed in Scilit: