{
  "id": "0906.5333",
  "version": "v2",
  "published": "2009-06-29T18:34:47.000Z",
  "updated": "2010-05-24T00:20:45.000Z",
  "title": "The Y(4260) as a $J/ψK \\bar{K}$ system",
  "authors": [
    "A. Martínez Torres",
    "K. P. Khemchandani",
    "D. Gamermann",
    "E. Oset"
  ],
  "comment": "Published version; some typo corrected",
  "journal": "Phys.Rev.D80:094012,2009",
  "doi": "10.1103/PhysRevD.80.094012",
  "categories": [
    "nucl-th"
  ],
  "abstract": "A study of the $J/\\psi \\pi \\pi$ and $J/\\psi K \\bar{K}$ systems, treating them as coupled channels, has been made by solving the Faddeev equations, with the purpose of investigating the possibility of generation of the $J^{PC} = 1^{--}$, Y(4260) resonance due to the interaction between these three mesons. In order to do this, we start by solving the Bethe-Salpeter equation for the two pseudoscalar and for the vector-pseudocalar meson systems using the amplitudes obtained from the lowest order chiral Lagrangians as potentials. With the $t$-matrices generated from these potentials, which contain the poles of the $\\sigma$, $f_{0}(980)$ and $a_{0}(980)$ resonances for the pseudoscalar-pseudoscalar system and the pole of the X(3872), alongwith other new charmed resonant states, for the vector-pseudoscalar system, we solve the Faddeev equations. As a result, we get a peak around 4150 MeV with a width $\\sim$ 90 MeV when the invariant mass of the two pseudoscalars is close to that of the $f_0 (980)$.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-05-24T00:20:45.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.40.Gx",
      "21.45.-v",
      "14.40.Aq"
    ],
    "keywords": [
      "faddeev equations",
      "lowest order chiral lagrangians",
      "vector-pseudocalar meson systems",
      "charmed resonant states",
      "pseudoscalar-pseudoscalar system"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2009,
      "month": "Nov",
      "volume": 80,
      "number": 9,
      "pages": "094012"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 824334,
      "adsabs": "2009PhRvD..80i4012T"
    }
  }
}