{
  "id": "2307.02533",
  "version": "v1",
  "published": "2023-07-05T18:00:01.000Z",
  "updated": "2023-07-05T18:00:01.000Z",
  "title": "Correlations of $C$ and $CP$ violation in $η\\to π^0\\ell^+\\ell^-$ and $η'\\to η\\ell^+\\ell^-$",
  "authors": [
    "Hakan Akdag",
    "Bastian Kubis",
    "Andreas Wirzba"
  ],
  "comment": "31 pages, 7 figures",
  "categories": [
    "hep-ph",
    "hep-ex",
    "nucl-th"
  ],
  "abstract": "Based on recent progress in the systematic analysis of $C$ and $CP$ violation in the light-meson sector, we calculate the $C$-odd transition amplitudes $\\eta\\to\\pi^0\\ell^+\\ell^-$ and $\\eta'\\to\\eta\\ell^+\\ell^-$. Focusing on long-distance contributions driven by the lowest-lying hadronic intermediate states, we work out the correlations between these beyond-the-Standard-Model signals and the Dalitz-plot asymmetries in $\\eta \\rightarrow \\pi^0 \\pi^+ \\pi^-$ and $\\eta' \\rightarrow \\eta \\pi^+ \\pi^- $, using dispersion theory.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-07-05T18:00:01.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "correlations",
      "odd transition amplitudes",
      "long-distance contributions driven",
      "lowest-lying hadronic intermediate states",
      "light-meson sector"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 31,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}