γγ interactions with KLOE

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Federico Nguyen (on behalf of the KLOE collaboration). γγ interactions with KLOE[J]. Chinese Physics C, 2010, 34(6): 795-800. doi: 10.1088/1674-1137/34/6/030
Federico Nguyen (on behalf of the KLOE collaboration). γγ interactions with KLOE[J]. Chinese Physics C, 2010, 34(6): 795-800.  doi: 10.1088/1674-1137/34/6/030 shu
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Received: 2010-01-25
Revised: 1900-01-01
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γγ interactions with KLOE

  • INFN Sezione ``Roma TRE'', Via della Vasca Navale 84, I-00146 Roma, Italy

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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