{
  "id": "0707.2687",
  "version": "v1",
  "published": "2007-07-18T09:42:38.000Z",
  "updated": "2007-07-18T09:42:38.000Z",
  "title": "Search for the K(S) --> e+e- decay with the KLOE detector at DAFNE",
  "authors": [
    "The KLOE collaboration"
  ],
  "comment": "paper submitted to Lepton Photon 07",
  "journal": "Phys.Lett.B672:203-208,2009",
  "doi": "10.1016/j.physletb.2009.01.037",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We present results of a direct search for the decay KS --> e+e- with the KLOE detector, obtained with a sample of e+e- --> phi --> KSKL events produced at DAFNE, the Frascati phi-factory, for an integrated luminosity of 1.3fb-1. The Standard Model prediction for this decay is BR(KS --> e+e-) = 1.6*10^-15. The search has been performed tagging the KS decays by simultaneous detection of a KL interaction in the calorimeter. Background rejection has been optimized by using both kinematic cuts and particle identification. At the end of the analysis chain we find BR(KS --> e+e-) < 2.1*10^-8 at 90% CL, which improves by a factor of ~7 on the previous best result, obtained by CPLEAR experiment.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-07-18T09:42:38.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.20.Eb"
    ],
    "keywords": [
      "kloe detector",
      "standard model prediction",
      "decay ks",
      "ks decays",
      "best result"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Physics Letters B",
      "year": 2009,
      "month": "Feb",
      "volume": 672,
      "number": 3,
      "pages": 203
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 756103,
      "adsabs": "2009PhLB..672..203K"
    }
  }
}