{
  "id": "hep-ph/0501082",
  "version": "v2",
  "published": "2005-01-11T02:23:55.000Z",
  "updated": "2005-09-22T09:49:55.000Z",
  "title": "Prediction of $B_c\\to Dπ$ in the pQCD approach",
  "authors": [
    "Jian-Feng Cheng",
    "Dong-Sheng Du",
    "Cai-Dian Lu"
  ],
  "comment": "The numerical results have been updated and some errors have been corrected. (10 pages, 16 figures, revtex4)",
  "journal": "Eur.Phys.J.C45:711-720,2006",
  "doi": "10.1140/epjc/s2005-02453-0",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "We investigate the branching ratios and direct CP asymmetries of $B_c^+\\to D^0\\pi^+$ and $B_c^+\\to D^+\\pi^0$ decays in the PQCD approach. All the diagrams with emission topology or annihilation topology are calculated strictly. A branching ratio of $10^{-6}$ and $10^{-7}$ for $B_c^+\\to D^0\\pi^+$ and $B_c^+\\to D^+\\pi^0$ decay is predicted, respectively. Because of the different weak phase and strong phase from penguin operator and two kinds of tree operator contributions, we predict a possible large direct CP violation: $A^{\\rm dir}_{cp} (B_c^\\pm \\to D^0 \\pi^\\pm)\\approx -50%$ and $A^{\\rm dir}_{cp} (B_c^\\pm \\to D^\\pm \\pi^0)\\approx 25%$ when $\\gamma=55^\\circ$, which can be tested in the coming LHC.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2005-09-22T09:49:55.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.38.Bx",
      "13.25.Hw"
    ],
    "keywords": [
      "pqcd approach",
      "prediction",
      "large direct cp violation",
      "direct cp asymmetries",
      "branching ratio"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "RevTeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 674684
    }
  }
}