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arXiv · 1704.01887

Hadronic vacuum polarization in $e^{+}e^{-}\to μ^{+}μ^{-}$ process bellow 3 GeV

Vladimir Sauli
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Abstract

The interference effect between leptonic radiative corrections and hadronic polarization functions is calculated via optical theorem for $μ-$pair productions. It is achieved within the use of the last data for $σ_h(e^+e^-\rightarrow hadrons)$ from SND,CMD,CMD-2,BABAR and BESSIII experimental Collaborations. The paper takes into account specific experimental conditions and the result is compared with KLOE experiment for $μ^{-}μ^{+}$ production at $ϕ$ meson energy. Small, but non-negligible tension between theory and experiment is discussed.

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Vladimir Sauli. 2017-04-06. Hadronic vacuum polarization in $e^{+}e^{-}\to μ^{+}μ^{-}$ process bellow 3 GeV. https://arxiv.org/abs/1704.01887

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