Resolution of the $\rb -\als$ crisis of the SM in an exotic ETC scenario

Details Resolution of the $\rb -\als$ crisis of the SM in an exotic ETC scenario Resolution of the $\rb -\als$ crisis of the SM in an exotic ETC scenario

1996-04-19

arxiv.org/abs/hep-ph/9604365v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

TeX, 8 pages, no figures

Scientific paper

In this article we show that the $\rb -\als $ crisis of the SM can be resolved in a commuting TC scenario with sideways gauge bosons only if the ETC representation contains mirror technifermions. For a toy ETC model we estimate the value of $\xi^2_t={\gel/ \guer}$ that is needed to produce the observed LEP excess in $\rb$. It is also shown that the same value of $\xi^2_t$ resolvs the $\als$ crisis of the SM but produces a $\delta \rho_{new}$ which is barely within the present experimental bound.

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