{
  "id": "0809.4165",
  "version": "v2",
  "published": "2008-09-24T11:36:03.000Z",
  "updated": "2008-10-07T14:56:44.000Z",
  "title": "Semileptonic Decays at Belle",
  "authors": [
    "Wolfgang Dungel"
  ],
  "comment": "Parallel talk at ICHEP08, Philadelphia, USA, July 2008. 4 pages, 4 figures; cosmetic changes in template provided by ICHEP08 organizers",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We present three analyses based on data samples collected by the Belle detector at the KEKB e+e- asymmetric energy collider. The first one contains the measurement of the branching fractions and q^2 distributions of exclusive charmless semileptonic B decays, which are used to extract the Cabibbo-Kobayashi-Maskawa matrix element |V_{ub}|. The sample of events is obtained by fully reconstructing one of the B mesons in selected hadronic modes. The second analysis determines the branching fraction and the form factors rho^2, R_1 and R_2 for the exclusive decay B^0 -> D^{*-} \\ell^+ \\nu. These measurements are used to extract the Cabibbo-Kobayashi-Maskawa matrix element |V_{cb}|. The third analysis investigates B -> D^{**} \\ell \\nu decays and determines branching ratios for the four modes D_{0}^{*}, D_{1}, D_{1}^{'} and D_{2}^{*} for both charged and neutral B decays.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2008-10-07T14:56:44.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "semileptonic decays",
      "cabibbo-kobayashi-maskawa matrix element",
      "asymmetric energy collider",
      "second analysis determines",
      "branching fraction"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 797533,
      "adsabs": "2008arXiv0809.4165D"
    }
  }
}