{
  "id": "1005.3168",
  "version": "v2",
  "published": "2010-05-18T12:10:26.000Z",
  "updated": "2010-10-19T08:58:05.000Z",
  "title": "Hidden-charm and radiative decays of the Z(4430) as a hadronic D_1 \\bar{D^\\ast} bound state",
  "authors": [
    "Tanja Branz",
    "Thomas Gutsche",
    "Valery E. Lyubovitskij"
  ],
  "comment": "13 pages, 3 figures, matches published version",
  "journal": "Phys.Rev.D82:054025,2010",
  "doi": "10.1103/PhysRevD.82.054025",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "We study the $Z^\\pm(4430)$ meson within a heavy hadron molecule interpretation where the $Z$ is considered as a bound state of a vector $D^\\ast(2010)$ and an axial-vector $D_1(2420)$. We give predictions for the strong hidden-charm $Z^\\pm(4430) \\to \\pi^\\pm \\psi$ and $\\pi^\\pm\\psi^\\prime$ decay widths and also study the radiative $Z^\\pm\\;(J^P=1^-) \\to \\pi^\\pm\\gamma$ decay properties in a phenomenological Lagrangian approach. Our findings are qualitatively in line with the experimental observation that the $\\pi^\\pm\\psi^\\prime$ transition dominates over the $\\pi^\\pm\\psi$ decay mode despite a smaller phase space. The width for the radiative mode $\\pi^\\pm\\gamma$ is sizable, allowing possible detection in future experiments.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-10-19T08:58:05.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.25.Gv",
      "14.40.Rt",
      "12.38.Lg"
    ],
    "keywords": [
      "bound state",
      "radiative decays",
      "heavy hadron molecule interpretation",
      "decay mode despite",
      "smaller phase space"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2010,
      "month": "Sep",
      "volume": 82,
      "number": 5,
      "pages": "054025"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 855354,
      "adsabs": "2010PhRvD..82e4025B"
    }
  }
}