Measurement of $σ(e^+e^- \to π^+π^-)$ at DA$Φ$NE with the radiative return

dc.creatorMüller, Stefan E.
dc.date2003-12-22
dc.date2004-02-23
dc.date.accessioned2026-07-07T13:15:41Z
dc.date.available2026-07-07T13:15:41Z
dc.descriptionThe measurement of hadronic cross sections at low centre-of-mass energies is currently attracting much interest because of the rô{}le these measurements play in the theoretical evaluation of the anomalous magnetic moment of the muon. The KLOE experiment at the DA$Φ$NE $ϕ$-factory in Frascati aims to determine the cross section of the dominant contribution $e^{+}e^{-} \to π^{+}π^{-}$ at energies below 1 GeV exploiting the radiative return from the $ϕ$ to the $ρ$ and $ω$ mesons. This method has systematic errors completely different from previous measurements and allows a cross check of existing data in this energy region. The method and results on both the differential cross section for $e^{+}e^{-} \to π^{+}π^{-}γ$ and the total cross section for $e^{+}e^{-} \to π^{+}π^{-}$ are presented.
dc.description6 pages, 5 figures, Invited talk at the Workshop on e+e- in the 1-2 GeV range, Alghero, Italy, September 2003 (eConf C0309101); References completed, pdf-visibility improved
dc.identifierhttps://arxiv.org/abs/hep-ex/0312056
dc.identifierhttp://arxiv.org/abs/hep-ex/0312056
dc.identifierECONF C0309101:FRWP008,2003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230548
dc.subjectHigh Energy Physics - Experiment
dc.titleMeasurement of $σ(e^+e^- \to π^+π^-)$ at DA$Φ$NE with the radiative return
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