Abstract
The KLOE experiment has collected 2.5 fb−1 at the peak of the φ resonance at the e+e− collider DAΦNE in Frascati and KLOE-2 is expected to start data taking at the upgraded DAΦNE φ-factory late 2010, with the aim to collect 25 fb−1 at the φ peak and it is under discussion the collection of 5 fb−1 between 1 and 2.5 GeV. KLOE data have been used to investigate the properties of the light scalar mesons f0(980), a0(980) and light pseudoscalar mesons η, η′, using φ radiative decays. Gamma-gamma interactions allow to investigate also the f0(600)/σ meson, observing the reaction e+e− into e+e−π0π0; a direct search of the f0(600)/σ into π0π0 decay is performed with data taken at a center of mass of 1 GeV, where φ decays are suppressed. We present ongoing analysis and final results already published with the full KLOE statistics and the scientific program of KLOE-2 collaboration on hadron physics.
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