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arXiv · hep-ph/9503463

Hadronic Light-by-light Scattering Effect on Muon g-2

M. Hayakawa·T. Kinoshita·A. I. Sanda
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Abstract

The hadronic light-by-light scattering contribution to muon $g-2$ is examined using low energy effective theories of QCD, the Nambu-Jona-Lasinio model and hidden local chiral symmetry, as guides. Our result is $- 36 \times 10^{-11}$ with an uncertainty of $\pm 16 \times 10^{-11}$, which includes our best estimate of model dependence. This is within the expected measurement uncertainty of $40\times 10^{-11}$ in the forthcoming experiment at Brookhaven National Laboratory. Our result removes one of the main theoretical obstacles in verifying the existence of the weak contribution to the muon $g-2$.

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M. Hayakawa, T. Kinoshita, A. I. Sanda. 1995-03-29. Hadronic Light-by-light Scattering Effect on Muon g-2. https://doi.org/10.1103/physrevlett.75.790

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