{
  "id": "1502.04619",
  "version": "v1",
  "published": "2015-02-13T03:22:08.000Z",
  "updated": "2015-02-13T03:22:08.000Z",
  "title": "Tetraquark state candidates: $Y(4140)$, $Y(4274)$ and $X(4350)$",
  "authors": [
    "Zhi-Gang Wang",
    "Ye-Fan Tian"
  ],
  "comment": "15 pages, 12 figures. arXiv admin note: substantial text overlap with arXiv:1312.1537, arXiv:1403.0810; text overlap with arXiv:1502.00279",
  "journal": "Int.J.Mod.Phys.A30(2015)1550004",
  "doi": "10.1142/S0217751X15500049",
  "categories": [
    "hep-ph"
  ],
  "abstract": "In this article, we tentatively assign the $Y(4140)$, $Y(4274)$ and $X(4350)$ to be the scalar and tensor $cs\\bar{c}\\bar{s}$ tetraquark states, respectively, and study them with the QCD sum rules. In the operator product expansion, we take into account the vacuum condensates up to dimension-10. In calculations, we use the formula $\\mu=\\sqrt{M^2_{X/Y/Z}-(2{\\mathbb{M}}_c)^2}$ to determine the energy scales of the QCD spectral densities. The numerical results favor assigning the $Y(4140)$ to be the $J^{PC}=2^{++}$ diquark-antidiquark type tetraquark state, and disfavor assigning the $Y(4274)$ and $X(4350)$ to be the $0^{++}$ or $2^{++}$ tetraquark states.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-02-13T03:22:08.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.39.Mk",
      "12.38.Lg"
    ],
    "keywords": [
      "tetraquark state candidates",
      "diquark-antidiquark type tetraquark state",
      "qcd sum rules",
      "qcd spectral densities",
      "operator product expansion"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "International Journal of Modern Physics A",
      "year": 2015,
      "month": "Jan",
      "volume": 30,
      "number": 1,
      "pages": 1550004
    },
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1342655,
      "adsabs": "2015IJMPA..3050004W"
    }
  }
}