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arXiv · 0707.4078

KLOE extraction of $a_μ^{ππ}$ in the mass range [0.35,0.95] GeV^2

The KLOE Collaboration
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Abstract

The KLOE Experiment at the $ϕ$ factory DA$Φ$NE, has measured the cross section $σ(e^+e^-\toπ^+π^-γ)$ using two different selection schemes: requiring the photon emission at small polar angle and detecting the photon at large polar angle in the calorimeter. Using a theoretical radiator function we extract the pion form factor and obtain the $ππ$ contribution to the anomalous magnetic moment of the muon. Results presented here come from the analysis of 240 pb^{-1} collected in 2002, with improved systematic uncertainty with respect to the published KLOE analysis. We also include an update of the previous analysis.

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The KLOE Collaboration. 2007-07-27. KLOE extraction of $a_μ^{ππ}$ in the mass range [0.35,0.95] GeV^2. https://arxiv.org/abs/0707.4078

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