{
  "id": "0704.2493",
  "version": "v1",
  "published": "2007-04-19T09:58:52.000Z",
  "updated": "2007-04-19T09:58:52.000Z",
  "title": "The study of $B_c^- \\to X(3872)π^-(K^-)$ Decays in the Covariant Light-Front Approach",
  "authors": [
    "Wei Wang",
    "Yue-Long Shen",
    "Cai-Dian Lu"
  ],
  "comment": "14 pages, Revtex4, with 1 figure",
  "journal": "Eur.Phys.J.C51:841-847,2007",
  "doi": "10.1140/epjc/s10052-007-0334-3",
  "categories": [
    "hep-ph"
  ],
  "abstract": "In the covariant light-front quark model, we calculate the form factors of $B_c^-\\to J/\\psi$ and $B_c^-\\to X(3872)$. Since the factorization of the exclusive processes $B_c^- \\to J/\\psi\\pi^-(K^-)$ and $B_c^- \\to X(3872)\\pi^-(K^-)$ can be proved in the soft-collinear effective theory, we can get the branching ratios for these decays easily from the form factors. Taking the uncertainties into account, our results for the branching ratio of $B_c^-\\to J/\\psi \\pi^-(K^-)$ are consistent with the previous studies. By identifying X(3872) as a $1^{++}$ charmonium state, we obtain ${\\cal BR}(B_c^-\\to X(3872)\\pi^-)=(1.7^{+0.7+0.1+0.4}_{-0.6-0.2-0.4}) \\times 10^{-4}$ and ${\\cal BR}(B_c^-\\to X(3872)K^-)=(1.3^{+0.5+0.1+0.3}_{-0.5-0.2-0.3})\\times 10^{-5}$. If assuming X(3872) as a $1^{--}$ state, the branching ratios will be one order magnitude larger than those of $1^{++}$ state. These results can be easily used to test the charmonium description for this mysterious meson X(3872) at LHCb experiment.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-04-19T09:58:52.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "covariant light-front approach",
      "branching ratio",
      "form factors",
      "covariant light-front quark model",
      "order magnitude larger"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "European Physical Journal C",
      "year": 2007,
      "month": "Aug",
      "volume": 51,
      "number": 4,
      "pages": 841
    },
    "note": {
      "typesetting": "RevTeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 748885,
      "adsabs": "2007EPJC...51..841W"
    }
  }
}