{
  "id": "hep-ex/0406005",
  "version": "v1",
  "published": "2004-06-01T17:51:37.000Z",
  "updated": "2004-06-01T17:51:37.000Z",
  "title": "Branching Fractions and CP Asymmetries in B0 --> K+ K- K0S and B+ --> K+ K0S K0S",
  "authors": [
    "The BABAR Collaboration",
    "B. Aubert"
  ],
  "comment": "7 pages, 2 postscript figures; submitted to Phys. Rev. Lett",
  "journal": "Phys.Rev.Lett.93:181805,2004",
  "doi": "10.1103/PhysRevLett.93.181805",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We measure the branching fractions and CP asymmetries in the decays B0 --> K+K-K0S and B+ --> K+K0S K0S using a sample of approximately 122 million BBbar pairs collected by the BaBar detector. From a time-dependent analysis of the K+ K- K0S sample that excludes phi K0S, the values of the CP-violation parameters are S = -0.56 +/- 0.25 +/- 0.04 and C = -0.10 +/- 0.19 +/- 0.10, where the first uncertainty is statistical, the second is systematic. We confirm that the final state is nearly purely CP-even. Using this result and setting C=0, we extract the Standard Model parameter sin2beta = 0.57 +/- 0.26 +/- 0.04 +0.17/-0 where the last error is due to uncertainty on the CP content. We present the first measurement of the CP-violating charge asymmetry ACP(B+ --> K+K0S K0S) = -0.04 +/- 0.11 +/- 0.02, with a 90% confidence-level interval of [-0.23, 0.15]. The branching fractions are BF(B0 --> K+K-K0) = (23.8 +/- 2.0 +/- 1.6) x 10^{-6} and BF(B+ --> K+K0S K0S) = (10.7 +/- 1.2 +/- 1.0) x 10^{-6}.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-06-01T17:51:37.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.30.Er",
      "12.15.Hh",
      "13.25.Hw"
    ],
    "keywords": [
      "branching fractions",
      "cp asymmetries",
      "k0s k0s",
      "standard model parameter sin2beta",
      "excludes phi k0s"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 651418
    }
  }
}