{
  "id": "hep-ex/0608016",
  "version": "v2",
  "published": "2006-08-07T02:48:50.000Z",
  "updated": "2006-11-01T19:51:13.000Z",
  "title": "Measurement of the Branching Fraction and Time-Dependent CP Asymmetry in the Decay B0->D*+D*-Ks",
  "authors": [
    "The BABAR Collaboration",
    "B. Aubert"
  ],
  "comment": "Minor changes of the text and reference for the publication",
  "journal": "Phys.Rev.D74:091101,2006",
  "doi": "10.1103/PhysRevD.74.091101",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We study the decay B0->D*+D*-Ks using (230 +/- 2) x 10^{6} BBbar pairs collected by the Babar detector at the PEP-II B factory. We measure a branching fraction B(B0->D*+D*-Ks)=(4.4\\pm0.4\\pm0.7)\\times 10^{-3} and find evidence for the decay B0->D*- D+_{s1}(2536) with a significance of $4.6\\sigma$. A time-dependent CP asymmetry analysis is also performed to study the possible resonant contributions to B0->D*+D*-Ks and the sign of cos2beta . Our measurement indicates that there is a sizable resonant contribution to the decay B0->D*+D*-Ks from a unknown $D^+_{s1}$ state with large width, and that cos2beta is positive at the 94 % confidence level under certain theoretical assumptions.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2006-11-01T19:51:13.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.30.Er",
      "13.25.Hw",
      "12.15.Hh"
    ],
    "keywords": [
      "branching fraction",
      "measurement",
      "time-dependent cp asymmetry analysis",
      "confidence level",
      "sizable resonant contribution"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 723331
    }
  }
}