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Hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon at the physical pion mass

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arxiv 2411.11719 v1 pith:EBLEE4OA submitted 2024-11-18 hep-lat hep-ph

Hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon at the physical pion mass

Zoltan Fodor , Antoine Gerardin , Laurent Lellouch , Kalman K. Szabo , Balint C. Toth , Christian Zimmermann This is my paper
classification hep-lat hep-ph
keywords mathrmanomalouscontributioncontributionsdisconnectedhadroniclatticelight-by-light
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present a lattice QCD calculation of the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon using $N_f=2+1+1$ flavors of staggered quarks with masses tuned to their physical values. Our final result, in the continuum limit, reads $a_{\mu}^{\mathrm{hlbl}} = 125.5(11.6)_{\mathrm{stat}}(0.4)_{\mathrm{syst}} \times 10^{-11}$ where the first error is statistical and the second is systematic. Light, strange and charm-quark contributions are considered. In addition to the connected and leading disconnected contributions, we also include an estimate of the sub-leading disconnected diagrams. Our result is compatible with previous lattice QCD and data-driven dispersive determinations.

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Cited by 6 Pith papers

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

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