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The long-distance window of the hadronic vacuum polarization for the muon g-2

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arxiv 2410.20590 v1 pith:HUUUWQNN submitted 2024-10-27 hep-lat hep-ph

T. Blum , P. A. Boyle , M. Bruno , B. Chakraborty , F. Erben , V. Gülpers , A. Hackl , N. Hermansson-Truedsson
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R. C. Hill T. Izubuchi L. Jin C. Jung C. Lehner J. McKeon A. S. Meyer M. Tomii J. T. Tsang X.-Y. Tuo
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keywords calculationcomparedconnconnectedcontributionhadronicisospinlarger
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abstract

We provide the first ab-initio calculation of the Euclidean long-distance window of the isospin symmetric light-quark connected contribution to the hadronic vacuum polarization for the muon $g-2$ and find $a_\mu^{\rm LD,iso,conn,ud} = 411.4(4.3)(2.4) \times 10^{-10}$. We also provide the currently most precise calculation of the total isospin symmetric light-quark connected contribution, $a_\mu^{\rm iso,conn,ud} = 666.2(4.3)(2.5) \times 10^{-10}$, which is more than 4$\sigma$ larger compared to the data-driven estimates of Boito et al. 2022 and 1.7$\sigma$ larger compared to the lattice QCD result of BMW20.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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  4. Comparison of the hadronic vacuum polarization between hadronic $\tau$-decay data and lattice QCD

    hep-ph 2026-05 unverdicted novelty 6.0 of 10

    Lattice QCD and tau-decay dispersive calculations of isospin-one HVP generally agree, except for a significant difference in the 2π−π+π0 four-pion mode contribution to window quantities.

  5. Long-distance reconstruction of QED corrections to the hadronic vacuum polarization for the muon g-2

    hep-lat 2025-08 conditional novelty 6.0 of 10

    A lattice QCD+QED method reconstructs the long-distance QED correction to the hadronic vacuum polarization from exclusive pion-photon and rho states, demonstrated at a single lattice spacing.

  6. Muon lifetime and Fermi constant: an update

    hep-ph 2026-07 accept novelty 4.5 of 10

    Updated Δq = (−4 384 678 ± 34)×10^{-9} reduces theory error on the muon lifetime by an order of magnitude and gives G_F = 1.166 378 59(59)×10^{-5} GeV^{-2}.

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