Contribution to muon g-2 from the \pi0γand ηγintermediate states in the vacuum polarization

Abstract

Using new experimental data, we have calculated the contribution to the anomalous magnetic moment of the muon from the \pi0γand ηγintermediate states in the vacuum polarization with high precision: aμ(\pi0γ)+aμ(ηγ)=(54.7\pm 1.5)\times 10^{-11}. We have also found the small contribution from e+e-\pi0, e+e-ηand μ+μ-\pi0 intermediate states equal to 0.5\times 10^{-11}.

6 pages, 2 figures, revtex

References in corpus (3)

• Precise Measurement of the Positive Muon Anomalous Magnetic Moment
• Precision Determination of the Pion Form Factor and Calculation of the Muon $g-2$
• Study of the Process e+ e- ---> eta gamma in c.m. Energy Range 600-1380 MeV at CMD-2

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• New ISR Cross Section Results on $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^0{\pi }^0$ and $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\eta$ from BaBar
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