{
  "id": "1211.4523",
  "version": "v2",
  "published": "2012-11-19T18:07:28.000Z",
  "updated": "2013-01-29T20:29:09.000Z",
  "title": "Measurement of W-Boson Polarization in Top-quark Decay using the Full CDF Run II Data Set",
  "authors": [
    "CDF Collaboration"
  ],
  "comment": "8 pages, 2 figures; as accepted to Phys. Rev. D Rapid Communications",
  "journal": "Phys.Rev. D 87, 03110(R) (2013)",
  "doi": "10.1103/PhysRevD.87.031104",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We measure the polarization of W bosons from top-quark (t) decays into final states with a charged lepton and jets, tt --> WbWb --> lvbqqb, using the full Run II data set collected by the CDF II detector. A model-independent method simultaneously determines the fraction of longitudinal (f_0) and right-handed (f_+) W bosons to yield f_0 = 0.726 +/- 0.066 (stat) +/- 0.067 (syst) and f_+ = -0.045 +/- 0.044 (stat) +/- 0.058 (syst) with a correlation coefficient of -0.69. Additional results are presented under various standard model assumptions. No significant discrepencies with the standard model are observed.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-01-29T20:29:09.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.70.Fm",
      "13.88.+e",
      "14.65.Ha",
      "14.70.Dj",
      "13.85.Qk"
    ],
    "keywords": [
      "full cdf run",
      "data set",
      "top-quark decay",
      "w-boson polarization",
      "measurement"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2013,
      "month": "Feb",
      "volume": 87,
      "number": 3,
      "pages": "031104"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1203135,
      "adsabs": "2013PhRvD..87c1104A"
    }
  }
}