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Initial measurements of Z-boson resonance parameters in e+e- annihilation

  • Author(s): Abrams, GS
  • Adolphsen, CE
  • Aleksan, R
  • Alexander, JP
  • Allen, MA
  • Atwood, WB
  • Averill, D
  • Ballam, J
  • Bambade, P
  • Barish, BC
  • Barklow, T
  • Barnett, BA
  • et al.
Abstract

We have measured the mass of the Z boson to be 91.110.23 GeV/c2, and its width to be 1.61-0.43+0.60 GeV. If we constrain the visible width to its standard-model value, we find the partial width to invisible decay modes to be 0.620.23 GeV, corresponding to 3.81.4 neutrino species. © 1989 The American Physical Society.

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