{
  "id": "2209.02143",
  "version": "v1",
  "published": "2022-09-05T21:02:48.000Z",
  "updated": "2022-09-05T21:02:48.000Z",
  "title": "Determination of the structure of the $K \\to πππ$ amplitudes from recent data",
  "authors": [
    "G. D'Ambrosio",
    "M. Knecht",
    "S. Neshatpour"
  ],
  "comment": "18 pages, 6 tables",
  "categories": [
    "hep-ph"
  ],
  "abstract": "This Letter provides a new determination of the ten real coefficients that describe the structure of the $K \\to \\pi\\pi\\pi$ amplitudes in the limit where isospin is conserved and complex phases, due to either CP violation or final-state rescattering, are neglected. This determination is obtained through a fit to the data on the Dalitz-plot structures and partial-decay rates collected during the last twenty years by several high-precision experiments. The fitting procedure and the way the experimental data have been handled in the fit are discussed in detail. Our fit leads to a more precise determination of the coefficients describing the linear and quadratic slopes of the $K \\to \\pi\\pi\\pi$ amplitudes.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-09-05T21:02:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "amplitudes",
      "complex phases",
      "cp violation",
      "real coefficients",
      "dalitz-plot structures"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 18,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}