{
  "id": "hep-ex/0703040",
  "version": "v2",
  "published": "2007-03-27T05:14:56.000Z",
  "updated": "2007-04-14T03:20:42.000Z",
  "title": "Improved measurement of B0bar --> Ds-D+ and search for B0bar --> Ds+Ds- at Belle",
  "authors": [
    "A. Zupanc",
    "for the Belle Collaboration"
  ],
  "comment": "7 pages, 2 figures, Submitted to Physical Review D, Rapid Communications",
  "journal": "Phys.Rev.D75:091102,2007",
  "doi": "10.1103/PhysRevD.75.091102",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We reconstruct B0bar --> Ds-D+ decays using a sample of 449 x 10^6 BBbar pairs recorded by the Belle experiment, and measure the branching fraction to be Br(B0bar --> Ds-D+)=[7.5 +- 0.2(stat) +- 0.8(syst) +- 0.8(Br's)] x 10^(-3). A search for the related decay B0bar --> Ds+Ds- is also performed. Since we observe no statistically significant signal an upper limit on the branching fraction is set at 3.6 x 10^(-5) (90% C.L.).",
  "revisions": [
    {
      "version": "v2",
      "updated": "2007-04-14T03:20:42.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.25.Hw",
      "14.40.Nd"
    ],
    "keywords": [
      "measurement",
      "branching fraction",
      "reconstruct b0bar",
      "statistically significant signal",
      "belle experiment"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 747271
    }
  }
}