{
  "id": "hep-ex/9704012",
  "version": "v1",
  "published": "1997-04-24T00:43:44.000Z",
  "updated": "1997-04-24T00:43:44.000Z",
  "title": "First Measurement of Leptonic Coupling Asymmetries with Polarized Z bosons",
  "authors": [
    "The SLD Collaboration",
    "K. Abe",
    "K. Abe",
    "T. Akagi"
  ],
  "comment": "10 pages, 1 figure",
  "journal": "Phys.Rev.Lett.79:804-808,1997",
  "doi": "10.1103/PhysRevLett.79.804",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We present direct measurements of the $Z^0$-lepton coupling asymmetry parameters, $A_e$, $A_\\mu$, and $A_\\tau$, based on a data sample of 12,063 leptonic $Z^0$ decays collected by the SLD detector. The $Z$ bosons are produced in collisions of beams of polarized $e^-$ with unpolarized $e^+$ at the SLAC Linear Collider. The couplings are extracted from the measurement of the left-right and forward-backward asymmetries for each lepton species. The results are: $A_e=0.152 \\pm 0.012 {(stat)} \\pm 0.001 {(syst)}$, $A_\\mu=0.102 \\pm 0.034 \\pm 0.002$, and $A_\\tau=0.195 \\pm 0.034 \\pm 0.003$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1997-04-24T00:43:44.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "leptonic coupling asymmetries",
      "first measurement",
      "lepton coupling asymmetry parameters",
      "slac linear collider",
      "data sample"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 442260
    }
  }
}