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Chapitre D'ouvrage Année : 2009

Hadronic Light-by-Light Scattering Contribution to the Muon Anomalous Magnetic Moment

Résumé

We review the current status of theoretical calculations of the hadronic light-by-light scattering contribution to the muon anomalous magnetic moment. Different approaches and related issues such as OPE constraints and large breaking of chiral symmetry are discussed. Combining results of different models with educated guesses on the errors we come to the estimate $$a^{\rm HLbL}=(10.5\pm 2.6)\times 10^{-10}.$$ The text is prepared as a contribution to the {\it Glasgow White Paper on the present status of the Muon Anomalous Magnetic Moment}.

Dates et versions

hal-00374317 , version 1 (08-04-2009)

Identifiants

Citer

Joaquim Prades, Eduardo de Rafael, Arkady Vainshtein. Hadronic Light-by-Light Scattering Contribution to the Muon Anomalous Magnetic Moment. Lepton Dipole Moments, 20, World Scientific, 2009, Advanced Series on Directions in High Energy Physics, 978-981-4271-83-7. ⟨hal-00374317⟩
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