{
  "id": "0710.1545",
  "version": "v2",
  "published": "2007-10-08T13:27:32.000Z",
  "updated": "2008-06-13T06:09:54.000Z",
  "title": "Radiative and isospin-violating decays of Ds mesons in the hadrogenesis conjecture",
  "authors": [
    "M. F. M. Lutz",
    "M. Soyeur"
  ],
  "comment": "102 pages, 7 figures, further improved presentation",
  "journal": "Nucl.Phys.A813:14-95,2008",
  "doi": "10.1016/j.nuclphysa.2008.09.003",
  "categories": [
    "hep-ph"
  ],
  "abstract": "The masses and decays of the scalar D_{s0}^*(2317) and axial-vector D_{s1}^*(2460) charmed strange mesons are calculated consistently in the hadrogenesis conjecture. These mesons decay either strongly into the isospin-violating pi^0 D_s and pi^0 D_s^* channels or electromagnetically. They are generated by coupled-channel dynamics based on the leading order chiral Lagrangian. The effect of chiral corrections to chiral order Q_\\chi^2 is investigated. We show that taking into account large-N_c relations to determine the strength of these correction terms implies a measurable signal for an exotic axial-vector state in the eta D* invariant mass distribution. The one-loop contribution to the electromagnetic decay amplitudes of scalar and axial-vector states is calculated. The Lagrangian describing electromagnetic interactions is obtained by gauging the chiral Lagrangian for hadronic interactions and adding gauge-invariant correction terms to chiral order Q_chi^2. In addition the role of light vector meson degrees of freedom is explored. We confront our results with measured branching ratios. Once the light vector mesons are included, a natural explanation of all radiative decay parameters is achieved.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2008-06-13T06:09:54.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.39.Fe",
      "13.20.Fc",
      "11.10.St",
      "13.40.Hq"
    ],
    "keywords": [
      "hadrogenesis conjecture",
      "ds mesons",
      "isospin-violating decays",
      "chiral order",
      "light vector meson degrees"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier",
      "journal": "Nuclear Physics A",
      "year": 2008,
      "month": "Nov",
      "volume": 813,
      "number": 1,
      "pages": 14
    },
    "note": {
      "typesetting": "TeX",
      "pages": 102,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 763428,
      "adsabs": "2008NuPhA.813...14L"
    }
  }
}