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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
  • Bartelt, J
  • Bethke, S
  • Blockus, D
  • de Boer W
  • Bonvicini, G
  • Boyarski, A
  • Brabson, B
  • Breakstone, A
  • Breidenbach, M
  • Brom, JM
  • Brown, JL
  • Brown, KL
  • Bulos, F
  • Burchat, PR
  • Burke, DL
  • Cence, RJ
  • Chapman, J
  • Chmeissani, M
  • Clendenin, J
  • Cords, D
  • Coupal, DP
  • Dauncey, P
  • Dean, NR
  • DeStaebler, HC
  • Dorfan, DE
  • Dorfan, JM
  • Drell, PS
  • Drewer, DC
  • Dydak, F
  • Ecklund, S
  • Elia, R
  • Erickson, RA
  • Fay, J
  • Feldman, GJ
  • Fernandes, D
  • Field, RC
  • Fieguth, TH
  • Fischer, GE
  • Ford, WT
  • Fordham, C
  • Frey, R
  • Fujino, D
  • Gan, KK
  • Gatto, C
  • Gero, E
  • Gidal, G
  • Glanzman, T
  • Goldhaber, G
  • Gomez Cadenas JJ
  • Gratta, G
  • Grindhammer, G
  • Grosse-Wiesmann, P
  • 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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