{
  "id": "hep-ph/0412077",
  "version": "v2",
  "published": "2004-12-06T11:50:02.000Z",
  "updated": "2005-02-17T07:10:43.000Z",
  "title": "Role of a_1(1260) resonance in multipion decays of light vector mesons",
  "authors": [
    "N. N. Achasov",
    "A. A. Kozhevnikov"
  ],
  "comment": "14 pages, 5 figures",
  "journal": "Phys.Rev. D71 (2005) 034015",
  "doi": "10.1103/PhysRevD.71.034015",
  "categories": [
    "hep-ph",
    "hep-ex",
    "nucl-th"
  ],
  "abstract": "The contribution of the a_1(1260) meson to the amplitudes of the decays rho(770) to 4 pi, omega(782) to 5 pi, and phi(1020) to 5 pi is analyzed in the chiral model of pseudoscalar, vector, and axial vector mesons based on the generalized hidden local symmetry added with the anomalous terms. The analysis shows that inclusion of a_1 meson in the intermediate states results in enhancement of the branching ratios of the above decays by the factor ranging from 1.3 to 1.9 depending on the mass of a_1 meson ranging from 1.23 GeV to m_{a_1}=m_rho sqrt{2}=1.09 GeV, the greater factor standing in case of lower mass of the a_1.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2005-02-17T07:10:43.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.30.Rd",
      "12.39.Fe",
      "13.30.Eg"
    ],
    "keywords": [
      "light vector mesons",
      "multipion decays",
      "axial vector mesons",
      "intermediate states results",
      "generalized hidden local symmetry"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 666263
    }
  }
}