{
  "id": "1205.3329",
  "version": "v1",
  "published": "2012-05-15T11:19:59.000Z",
  "updated": "2012-05-15T11:19:59.000Z",
  "title": "The decays $ρ^{-}\\toηπ^{-}$ and $τ^{-}\\toη(η')π^{-}ν$ in the NJL model",
  "authors": [
    "M. K. Volkov",
    "D. G. Kostunin"
  ],
  "comment": "6 pages, 5 figures, 1 table",
  "doi": "10.1103/PhysRevD.86.013005",
  "categories": [
    "hep-ph"
  ],
  "abstract": "The widths of the decays $\\rho^{-}\\to\\eta\\pi^{-}$ and $\\tau^{-}\\to\\eta(\\eta')\\pi^{-}\\nu$ are calculated in the framework of the NJL model. It is shown that these decays are defined by the $u$ and $d$ quark mass difference. It leads to the suppression of these decays in comparison with the main decay modes. In the process $\\rho^{-}\\to\\eta\\pi^{-}$ the intermediate scalar $a_0^{-}$ state is taken into account. For the $\\tau$ decays the intermediate states with $a_0^{-}$, $\\rho^{-}(770)$ and $\\rho^{-}(1450)$ mesons are used. Our estimates are compared with the results obtained in other works.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-05-15T11:19:59.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.35.Dx",
      "12.39.Fe"
    ],
    "keywords": [
      "njl model",
      "main decay modes",
      "quark mass difference",
      "intermediate scalar",
      "intermediate states"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2012,
      "month": "Jul",
      "volume": 86,
      "number": 1,
      "pages": "013005"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1114765,
      "adsabs": "2012PhRvD..86a3005V"
    }
  }
}