{
  "id": "2409.12981",
  "version": "v1",
  "published": "2024-09-03T10:34:49.000Z",
  "updated": "2024-09-03T10:34:49.000Z",
  "title": "First search for $K^+\\toπ^0πμe$ decays",
  "authors": [
    "NA62 collaboration"
  ],
  "comment": "arXiv admin note: substantial text overlap with arXiv:2211.04818",
  "categories": [
    "hep-ex"
  ],
  "abstract": "The first search for the lepton number violating decay $K^+\\to\\pi^0\\pi^-\\mu^+e^+$ and lepton flavour violating decays $K^+\\to\\pi^0\\pi^+\\mu^-e^+$, $K^+\\to\\pi^0\\pi^+\\mu^+e^-$ has been performed using a dataset collected by the NA62 experiment at CERN in 2016-2018. Upper limits of $2.9\\times 10^{-10}$, $3.1\\times 10^{-10}$ and $5.0\\times 10^{-10}$, respectively, are obtained at 90% CL for the branching ratios of the three decays on the assumption of uniform phase-space distributions.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-09-03T10:34:49.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "first search",
      "lepton number violating decay",
      "lepton flavour violating decays",
      "uniform phase-space distributions",
      "na62 experiment"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}