Light by light in the muon g-2

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Theoretical calculations of hadronic contributions to the muon anomalous magnetic moment are briefly reviewed. We present a model for the hadronic light-by-light scattering amplitude consistent with the short-distance constraints from the operator product expansion.

Original languageEnglish (US)
Pages (from-to)630-635
Number of pages6
JournalPhysics of Atomic Nuclei
Issue number4
StatePublished - Apr 2008

Bibliographical note

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Although we cannot claim any significant reduction in the theoretical uncertainty we believe that the shift ≈ 50 × 10−11 in the central value is real, In terms of comparison with the experimental value it{means that (220±100)×10−11 (76±100)×10−11 I am grateful to A. Czarnecki, W. J. Marciano and K. Melnikov for collaboration and to the organizers for the invitation to the Workshop. The work was supported in part by DOE grant DE-FG02-94ER408.


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