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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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