{
  "id": "hep-ph/0110124",
  "version": "v2",
  "published": "2001-10-09T17:06:27.000Z",
  "updated": "2001-11-06T17:41:26.000Z",
  "title": "Theoretical progress in describing the B-meson lifetimes",
  "authors": [
    "Damir Becirevic"
  ],
  "comment": "14 pages (5 figures), Extended version of the talk given at IEC-HEP Budapest, 2001",
  "categories": [
    "hep-ph",
    "hep-ex",
    "hep-lat"
  ],
  "abstract": "The present status of the theoretical estimates of the difference between the widths of the neutral Bs-mesons and of the B-meson lifetime ratios is reviewed. In particular, the lattice results for the matrix elements of the relevant (delta B=2)-operators are updated and the first lattice QCD results for the matrix elements of (delta B=0)-operators are presented. In both cases, the NLO perturbative QCD corrections in the coefficient functions have been included. The theoretically updated results are: (delta Gamma/Gamma)_{Bs} = (7 +/- 4) %, tau(B+)/tau(Bd) = 1.07(3) and tau(Bs)/tau(Bd) = 1.00(2).",
  "revisions": [
    {
      "version": "v2",
      "updated": "2001-11-06T17:41:26.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "theoretical progress",
      "first lattice qcd results",
      "matrix elements",
      "nlo perturbative qcd corrections",
      "b-meson lifetime ratios"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 563990,
      "adsabs": "2001hep.ph...10124B"
    }
  }
}