Abstract
Studies of γγ interactions are performed with the KLOE detector, without tagging of the outgoing e+e−. The data sample is from an integrated luminosity of 240 pb−1. It was collected at the ϕ-factory DAΦNE with e+e− beams colliding at √s ≃ 1 GeV, below the ϕ resonance peak. We present preliminary results concerning the observation of the γγ → η process and the evidence for γγ → π0π0 production at low π0π0 invariant masses.
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