{
  "id": "hep-ex/0604049",
  "version": "v3",
  "published": "2006-04-27T09:02:53.000Z",
  "updated": "2006-07-13T07:58:38.000Z",
  "title": "Measurement of D0 -> pilnu (Klnu) Form Factors and Absolute Branching Fractions",
  "authors": [
    "L. Widhalm",
    "for the Belle Collaboration"
  ],
  "comment": "9 pages, 2 figures, submitted to Phys. Rev. Lett",
  "journal": "Phys.Rev.Lett.97:061804,2006",
  "doi": "10.1103/PhysRevLett.97.061804",
  "categories": [
    "hep-ex"
  ],
  "abstract": "Using a 282 1/fb data sample collected by the Belle experiment at the KEKB e+e- collider, we study D0 decays to K-l+nu and pi-l+nu final states. The D0 flavor and momentum are tagged through a full reconstruction of the recoiling charm meson and additional mesons from fragmentation. The reconstruction method provides very good resolution in neutrino momentum and in q^2 = (p_l+p_nu)^2. Normalizing to the total number of D0 tags, we measure the absolute branching fractions to be B(D0 -> Klnu) =(3.45 +- 0.07stat +- 0.20syst)% and B(D0 -> pilnu) = (0.255 +- 0.019stat +- 0.016syst)% and the semi-leptonic form factors (within the modified pole model) f+^K(0) = 0.695 +- 0.007stat +- 0.022syst and f+^pi(0) = 0.624 +- 0.020stat +- 0.030syst.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2006-07-13T07:58:38.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.66.Bc",
      "13.20.Fc",
      "14.40.Lb"
    ],
    "keywords": [
      "absolute branching fractions",
      "measurement",
      "semi-leptonic form factors",
      "study d0 decays",
      "modified pole model"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 715430
    }
  }
}