Measurement of WW and ZZ boson production cross sections

Collaboration
Jan, 1999

Citations per year

1999200420092014201902468
Abstract:
DO has measured the inclusive production cross section of W and Z bosons in a sample of 13 pb1^{-1} of data collected at the Fermilab Tevatron. The cross sections, multiplied by their leptonic branching fractions, for production in pbar-p collisions at sqrt{s}=1.8 TeV are sigma_W*B(W->e nu) = 2.36+-0.02+-0.08+-0.13 nb, sigma_W*B(W->mu nu) = 2.09+-0.06+-0.22+-0.11 nb, sigma_Z*B(Z->e+ e-) = 0.218+-0.008+-0.008+-0.012 nb, and sigma_Z*B(Z->mu+ mu-) = 0.178+-0.022+-0.021+-0.009 nb, where the first uncertainty is statistical and the second systematic; the third reflects the uncertainty in the integrated luminosity. For the combined electron and muon analyses, we find sigma_W*B(W->l mu)/sigma_Z*B(Z->l+ l-) = 10.90+-0.52. Assuming standard model couplings, we use this result to determine the width of the W boson, and obtain Gamma(W) = 2.044+-0.097 GeV.
Note:
  • 46 pages with 17 embedded figures, submitted to PRD, Run 1a results Report-no: FERMILAB-Pub-99/015-E
  • D0
  • anti-p p: colliding beams
  • anti-p p: inclusive reaction
  • W: hadroproduction
  • Z0: hadroproduction
  • intermediate boson: leptonic decay
  • W: width
  • channel cross section: branching ratio
  • DZERO
  • experimental results