pith. machine review for the scientific record. sign in

arxiv: 1705.01775 · v2 · submitted 2017-05-04 · ✦ hep-lat · hep-ph

Recognition: unknown

The hadronic vacuum polarization contribution to the muon g-2 from lattice QCD

M. Della Morte , A. Francis , V. G\"ulpers , G. Herdo\'iza , G. von Hippel , H. Horch , B. J\"ager , H.B. Meyer
show 2 more authors
A. Nyffeler H. Wittig
Authors on Pith no claims yet
classification ✦ hep-lat hep-ph
keywords mathrmpolarizationvacuumcontributionhadroniclatticemuonanomalous
0
0 comments X
read the original abstract

We present a calculation of the hadronic vacuum polarization contribution to the muon anomalous magnetic moment, $a_\mu^{\mathrm hvp}$, in lattice QCD employing dynamical up and down quarks. We focus on controlling the infrared regime of the vacuum polarization function. To this end we employ several complementary approaches, including Pad\'e fits, time moments and the time-momentum representation. We correct our results for finite-volume effects by combining the Gounaris-Sakurai parameterization of the timelike pion form factor with the L\"uscher formalism. On a subset of our ensembles we have derived an upper bound on the magnitude of quark-disconnected diagrams and found that they decrease the estimate for $a_\mu^{\mathrm hvp}$ by at most 2%. Our final result is $a_\mu^{\mathrm hvp}=(654\pm32\,{}^{+21}_{-23})\cdot 10^{-10}$, where the first error is statistical, and the second denotes the combined systematic uncertainty. Based on our findings we discuss the prospects for determining $a_\mu^{\mathrm hvp}$ with sub-percent precision.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 4 Pith papers

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

  1. Higher-order hadronic vacuum polarization contribution to the muon $g-2$ from lattice QCD

    hep-lat 2026-03 conditional novelty 9.0

    Lattice QCD yields the NLO HVP contribution to muon g-2 as -101.57(26)stat(54)syst ×10^{-11}, 1.4σ below the 2025 White Paper estimate and twice as precise.

  2. Comparing RM123 and non-perturbative QCD+QED approaches to the HVP with C-periodic boundary conditions

    hep-lat 2026-05 unverdicted novelty 5.0

    Full dynamical QCD+QED simulations yield smaller uncertainties than the RM123 method for the intermediate-window HVP contribution at fixed lattice spacing, volume, and statistics.

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

    hep-ph 2026-05 unverdicted novelty 4.0

    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.

  4. Hadronic contributions to $\alpha(Q^{2})$ and $\sin^{2}\theta_{W}(Q^{2})$ from spectral reconstruction of lattice-QCD data

    hep-lat 2026-04 unverdicted novelty 4.0

    Preliminary lattice QCD results compute hadronic contributions to Δα(Q²) and Δsin²θ_W(Q²) via spectral reconstruction on N_f=2+1+1 physical-mass HISQ ensembles to obtain continuum-extrapolated values across the full e...