{
  "id": "hep-ex/0403007",
  "version": "v1",
  "published": "2004-03-02T16:30:08.000Z",
  "updated": "2004-03-02T16:30:08.000Z",
  "title": "Branching Fraction Measurements of B ->etac K Decays",
  "authors": [
    "The BABAR Collaboration",
    "B. Aubert"
  ],
  "comment": "8 pages, 8 postscript figures",
  "journal": "Phys.Rev.D70:011101,2004",
  "doi": "10.1103/PhysRevD.70.011101",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We study the decays B+ -> etac K+ and B0 -> etac K0, where the etac is reconstructed in the Ks K+ pi- and K+ K- pi0 decay modes. Results are based on a sample of 86 million BBbar pairs collected with the BaBar detector at the SLAC e+e- B Factory. We measure the branching fractions BR(B+ -> etac K+) = (1.34 +/- 0.09 +/- 0.13 +/- 0.41) x 10^{-3} and BR(B0 -> etac K0) = (1.18 +/- 0.16 +/- 0.13 +/- 0.37) x 10^{-3}, where the first error is statistical, the second is systematic, and the third reflects the etac branching fraction uncertainty. In addition, we search for B -> etac K events with etac -> 2(K+K-) and etac -> phi phi and determine the etac decay branching fraction ratios BR(etac -> 2(K+K-))/BR(etac -> K Kbar pi) = (2.3 +/- 0.7 +/- 0.6) x 10^{-2} and BR(etac -> phi phi)/BR(etac -> K Kbar pi) = (5.5 +/- 1.4 +/- 0.5) x 10^{-2}.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-03-02T16:30:08.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.30.Er",
      "13.25.Hw",
      "12.15.Hh"
    ],
    "keywords": [
      "branching fraction measurements",
      "etac k0",
      "phi phi",
      "kbar pi",
      "decay branching fraction ratios br"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 645511
    }
  }
}