Strong extended technicolour interactions and the Zbb̄ vertex

  title={Strong extended technicolour interactions and the Zbb̄ vertex},
  author={N. Evans},
  journal={Physics Letters B},
  • N. Evans
  • Published 1994
  • Physics
  • Physics Letters B
  • Abstract LEP precision measurements of the Zb b vertex coupling are sufficiently accurate to see the non-oblique corrections from the heavy gauge boson responsible for the large top mass in standard extended technicolour models. If the ETC couplings are strong the techni-fermion condensate may be enhanced by several orders of magnitude allowing a top mass of order 150 GeV to be obtaineb for large values of the ETC breaking scale sufficient to suppress the ETC contribution to the Zb b vertex. In… CONTINUE READING
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