Phys Rev Lett. 2023 Dec 22;131(25):251803. doi: 10.1103/PhysRevLett.131.251803.
ABSTRACT
We present the first data-driven result for a_{μ}^{win,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.
PMID:38181347 | DOI:10.1103/PhysRevLett.131.251803
