Limits on noncommuting extended technicolor.

Using precision electroweak data, we put limits on non-commuting extended technicolor models. We conclude that these models are viable only if the ETCinteractions are strong. Interestingly, these models predict a pattern of deviations from the standard model which can fit the data significantly better than the standard model does, even after taking into account the extra parameters involved. ∗e-mail addresses: [email protected], [email protected], [email protected]