{
  "id": "0807.4592",
  "version": "v6",
  "published": "2008-07-29T07:49:21.000Z",
  "updated": "2009-04-07T02:12:58.000Z",
  "title": "Another tetraquark structure in the $π^+ χ_{c1}$ invariant mass distribution",
  "authors": [
    "Zhi-Gang Wang"
  ],
  "comment": "14 pages, 14 figure, correct some type errors",
  "journal": "Eur.Phys.J.C62:375-382,2009",
  "doi": "10.1140/epjc/s10052-009-1043-x",
  "categories": [
    "hep-ph"
  ],
  "abstract": "In this article, we assume that there exists a scalar hidden charm tetraquark state in the $\\pi^+ \\chi_{c1}$ invariant mass distribution, and study its mass using the QCD sum rules. The numerical result $M_{Z}=(4.36\\pm0.18) \\rm{GeV}$ is consistent with the mass of the Z(4250). The Z(4250) may be a tetraquark state, other possibilities, such as a hadro-charmonium resonance and a $D_1^+\\bar{D}^0+ D^+\\bar{D}_1^0$ molecular state are not excluded.",
  "revisions": [
    {
      "version": "v6",
      "updated": "2009-04-07T02:12:58.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.38.Lg",
      "12.39.Mk"
    ],
    "keywords": [
      "invariant mass distribution",
      "tetraquark structure",
      "scalar hidden charm tetraquark state",
      "qcd sum rules",
      "molecular state"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "European Physical Journal C",
      "year": 2009,
      "month": "Jul",
      "volume": 62,
      "number": 2,
      "pages": 375
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 809998,
      "adsabs": "2009EPJC...62..375W"
    }
  }
}