Abstract
The KLOE experiment at the DAΦNE ϕ -factory has performed a new precise measurement of the pion form factor using Initial State Radiation events, with photons emitted at small polar angle. Results based on an integrated luminosity of 240 pb −1 and extraction of the ππ contribution to a μ in the mass range 0.35 < M π π 2 < 0.95 GeV 2 are presented. The new value of a μ π π has smaller (30%) statistical and systematic error and is consistent with the KLOE published value (confirming the current disagreement between the standard model prediction for a μ and the measured value).
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