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Measurement of the bb fraction in hadronic Z decays

  • Author(s): Kral, JF
  • Abrams, GS
  • Adolphsen, CE
  • Averill, D
  • Ballam, J
  • Barish, BC
  • Barklow, T
  • Barnett, BA
  • Bartelt, J
  • Bethke, S
  • Blockus, D
  • Bonvicini, G
  • et al.

Published Web Location

https://doi.org/10.1103/PhysRevLett.64.1211Creative Commons Attribution 4.0 International Public License
Abstract

Using isolated leptons reconstructed in the Mark II detector to tag bb events, we measure the fraction of bb events in hadronic Z0 decays to be 0.23-0.09+0.11, in good agreement with the standard-model prediction of 0.22. We find (Zbb)=0.43-0.17+0.21 GeV. © 1990 The American Physical Society.

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