{
  "id": "1102.2347",
  "version": "v2",
  "published": "2011-02-11T13:56:17.000Z",
  "updated": "2011-05-16T15:17:06.000Z",
  "title": "QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectra",
  "authors": [
    "Stefano I. Finazzo",
    "Xiang Liu",
    "Marina Nielsen"
  ],
  "comment": "version to appear in Phys. Lett. B",
  "journal": "Phys.Lett.B701:101-106,2011",
  "doi": "10.1016/j.physletb.2011.05.042",
  "categories": [
    "hep-ph",
    "hep-ex",
    "nucl-th"
  ],
  "abstract": "Using the QCD sum rules we test if the charmonium-like structure Y(4274), observed in the $J/\\psi\\phi$ invariant mass spectrum, can be described with a $D_s\\bar{D}_{s0}(2317)+h.c.$ molecular current with $J^{PC}=0^{-+}$. We consider the contributions of condensates up to dimension ten and we work at leading order in $\\alpha_s$. We keep terms which are linear in the strange quark mass $m_s$. The mass obtained for such state is $m_{D_s{D}_{s0}}=(4.80\\pm 0.55)$ GeV. We also consider a molecular $0^{-+}$ $D\\bar{D}_{0}(2400)+h.c.$ current and we obtain $m_{D{D}_0}=(4.61\\pm 0.71)$ GeV. Our study shows that the newly observed Y(4274) in the $J/\\psi\\phi$ invariant mass spectra can be, considering the uncertainties, described using a molecular charmonium current.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2011-05-16T15:17:06.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.55.Hx",
      "14.40.Rt",
      "14.40.Lb"
    ],
    "keywords": [
      "invariant mass spectrum",
      "j/psi omega invariant mass spectra",
      "qcd sum rule calculation",
      "charmonium-like structure",
      "j/psi phi"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Physics Letters B",
      "year": 2011,
      "month": "Jun",
      "volume": 701,
      "number": 1,
      "pages": 101
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 889434,
      "adsabs": "2011PhLB..701..101F"
    }
  }
}