{
  "id": "hep-ex/0311061",
  "version": "v2",
  "published": "2003-11-28T11:33:48.000Z",
  "updated": "2004-03-14T07:49:37.000Z",
  "title": "Improved Measurements of Branching Fractions for B->Kpi, pipi and KK Decays",
  "authors": [
    "The Belle Collaboration",
    "Y. Chao",
    "K. Suzuki",
    "Y. Unno"
  ],
  "comment": "10 pages, 1 figure, 4 tables. Submitted to Phys. Rev. D Rapid Communications. Several corrections were made",
  "journal": "Phys.Rev.D69:111102,2004",
  "doi": "10.1103/PhysRevD.69.111102",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We report improved measurements of branching fractions for $B\\to K\\pi$, $\\pi^+\\pi^-$, $\\pi^+\\pi^0$ and $K\\bar{K}$ decays based on a data sample of 85.0 million $B\\bar{B}$ pairs collected at the $\\Upsilon (4S)$ resonance with the Belle detector at the KEKB $e^+e^-$ storage ring. This data sample is almost three times larger than the sample previously used. We observe clear signals for $B\\to K\\pi$, $\\pi^+\\pi^-$ and $\\pi^+\\pi^0$ decays and set upper limits on $B\\to K\\bar{K}$ decays. The results can be used to give model-dependent constraints on the CKM angle $\\phi_3$, as well as limits on the hadronic uncertainty in the time-dependent analysis of the angle $\\phi_2$.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2004-03-14T07:49:37.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.30.Er",
      "14.40.Nd",
      "12.15.Hh",
      "13.25.Hw"
    ],
    "keywords": [
      "branching fractions",
      "kk decays",
      "measurements",
      "data sample",
      "set upper limits"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 634180
    }
  }
}