{
  "id": "hep-ex/0508022",
  "version": "v1",
  "published": "2005-08-09T13:21:14.000Z",
  "updated": "2005-08-09T13:21:14.000Z",
  "title": "Measurement of $b$ hadron masses in exclusive $J/ψ$ decays with the CDF detector",
  "authors": [
    "CDF Collaboration"
  ],
  "journal": "Phys.Rev.Lett.96:202001,2006",
  "doi": "10.1103/PhysRevLett.96.202001",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We measure the masses of $b$ hadrons in exclusively reconstructed final states containing a $J/\\psi\\to\\mu^-\\mu^+$ decay using $\\rm 220 pb^{-1}$ of data collected by the CDF II experiment. We find: m(B^+) = 5279.10 \\pm 0.41_{(stat.)} \\pm 0.36_{(sys.)} MeVcc, m(B^0) = 5279.63 \\pm 0.53_{(stat.)} \\pm 0.33_{(sys.)} MeVcc, m(B^0_s) = 5366.01 \\pm 0.73_{(stat.)} \\pm 0.33_{(sys.)} MeVcc, m(\\Lambda^0_b) = 5619.7 \\pm 1.2_{(stat.)} \\pm 1.2_{(sys.)} MeVcc. m(B^+) - m(B^0) = -0.53 \\pm 0.67_{(stat.)} \\pm 0.14_{(sys.)} MeVcc, m(B^0_s) - m(B^0) = 86.38 \\pm 0.90_{(stat.)} \\pm 0.06_{(sys.)} MeVcc m(\\Lambda^0_b) - m(B^0) = 339.2 \\pm 1.4_{(stat.)} \\pm 0.1_{(sys.)} MeVcc. The measurements of the $B^0_s$, $\\Lambda^0_b$ mass, $m(B^0_s)-m(B^0)$ and $m(\\Lambda^0_b)-m(B^0)$ mass difference are of better precision than the current world averages.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2005-08-09T13:21:14.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.40.Nd",
      "14.20.Mr",
      "13.25.Hw",
      "13.30.Eg"
    ],
    "keywords": [
      "cdf detector",
      "hadron masses",
      "measurement",
      "reconstructed final states containing",
      "current world averages"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 689415
    }
  }
}