{
  "id": "1007.5048",
  "version": "v2",
  "published": "2010-07-28T19:10:38.000Z",
  "updated": "2011-01-03T20:40:07.000Z",
  "title": "Diffractive W and Z Production at the Fermilab Tevatron",
  "authors": [
    "T. Aaltonen"
  ],
  "comment": "10 pages, 6 figures",
  "journal": "Phys.Rev.D82:112004,2010",
  "doi": "10.1103/PhysRevD.82.112004",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We report on a measurement of the fraction of events with a W or Z boson which are produced diffractively in antiproton-proton collisions at a center of mass energy of 1.96 TeV, using data from 0.6 inverse femtobarns of integrated luminosity collected with the CDF-II detector equipped with a Roman-pot spectrometer that detects the antiproton (pbar) from pbar+p --> pbar+[X+W/Z]. We find that (1.00+/- 0.11)% of Ws and (0.88+/-0.22)% of Zs are produced diffractively in a region of antiproton or proton fractional momentum loss (\\xi) of 0.03<\\xi<0.10 and 4-momentum transferred squared t of -1<t<0 (GeV/c)^2, where we account for the events in which the proton scatters diffractively while the antiproton dissociates, pbar+p --> [X+W/Z]+p, by doubling the measured proton dissociation fraction. We also report on searches for W and Z production in double Pomeron exchange, p+pbar --> p+[X+W/Z]+pbar, and on exclusive Z production, pbar+p --> pbar+Z+p. No signal is seen above background for these processes, and comparisons are made with expectations.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2011-01-03T20:40:07.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.70.Hp",
      "12.40.Nn",
      "14.70.Fm",
      "11.55.Jy"
    ],
    "keywords": [
      "fermilab tevatron",
      "production",
      "proton fractional momentum loss",
      "measured proton dissociation fraction",
      "diffractive"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2010,
      "month": "Dec",
      "volume": 82,
      "number": 11,
      "pages": 112004
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 863300,
      "adsabs": "2010PhRvD..82k2004A"
    }
  }
}