{
  "id": "hep-ph/9711229",
  "version": "v2",
  "published": "1997-11-04T15:08:19.000Z",
  "updated": "1998-05-14T13:46:22.000Z",
  "title": "The $η- η'$ Mixing Angle Revisited",
  "authors": [
    "A. Bramon",
    "R. Escribano",
    "M. D. Scadron"
  ],
  "comment": "17 pages, LaTeX. 2 references added, some comments on Chiral Perturbation Theory",
  "journal": "Eur.Phys.J.C7:271-278,1999",
  "doi": "10.1007/s100529801009",
  "categories": [
    "hep-ph"
  ],
  "abstract": "The value of the $\\eta - \\eta'$ mixing angle $\\theta_P$ is phenomenologically deduced from a rather exhaustive and up-to-date analysis of data including strong decays of tensor and higher-spin mesons, electromagnetic decays of vector and pseudoscalar mesons, $J/\\psi$ decays into a vector and a pseudoscalar meson, and other transitions. A value of $\\theta_P$ between $-17^\\circ$ and $-13^\\circ$ is consistent with all the present experimental evidence and the average $\\theta_P=-15.5^\\circ\\pm 1.3^\\circ$ seems to be favoured.",
  "revisions": [
    {
      "version": "v2",
      "updated": "1998-05-14T13:46:22.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "mixing angle",
      "pseudoscalar meson",
      "strong decays",
      "higher-spin mesons",
      "electromagnetic decays"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "European Physical Journal C",
      "year": 1999,
      "month": "Feb",
      "volume": 7,
      "number": 2,
      "pages": 271
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 450670,
      "adsabs": "1999EPJC....7..271B"
    }
  }
}