{
  "id": "0809.3883",
  "version": "v1",
  "published": "2008-09-23T10:41:20.000Z",
  "updated": "2008-09-23T10:41:20.000Z",
  "title": "Hidden local symmetry and the reaction e^+e^-\\toπ^+π^-π^+π^- at energies \\sqrt{s}\\leq 1 GeV",
  "authors": [
    "N. N. Achasov",
    "A. A. Kozhevnikov"
  ],
  "comment": "9 pages, 3 figures, 2 tables; accepted for publication in European Phys. Journal A",
  "journal": "Eur.Phys.J.A38:61-69,2008",
  "doi": "10.1140/epja/i2008-10654-x",
  "categories": [
    "hep-ph",
    "hep-ex",
    "nucl-th"
  ],
  "abstract": "Based on the generalized hidden local symmetry as the chiral model of pseudoscalar, vector, and axial vector mesons, the excitation curve of the reaction e^+e^-\\to\\pi^+\\pi^-\\pi^+\\pi^- is calculated for energies in the interval 0.65\\leq \\sqrt{s}\\leq1 GeV. The theoretical predictions are compared to available data of CMD-2 and BaBaR. It is shown that the inclusion of heavy isovector resonances \\rho(1450) and \\rho(1700) is necessary for reconciling calculations with the data. It is found that at \\sqrt{s}\\approx1 GeV the contributions of the above resonances are much larger, by the factor of 30, than the \\rho(770) one, and are amount to a considerable fraction \\sim0.3-0.6 of the latter at \\sqrt{s}\\sim m_\\rho.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-09-23T10:41:20.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.30.Rd",
      "12.39.Fe",
      "13.30.Eg"
    ],
    "keywords": [
      "axial vector mesons",
      "generalized hidden local symmetry",
      "heavy isovector resonances",
      "chiral model",
      "excitation curve"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "European Physical Journal A",
      "year": 2008,
      "month": "Oct",
      "volume": 38,
      "number": 1,
      "pages": 61
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 797406,
      "adsabs": "2008EPJA...38...61A"
    }
  }
}