Z Boson Propagator Correction in Technicolor Theories with ETC Effects Included

Understand

We calculate the Z boson propagator correction, as described by the S parameter, in technicolor theories with extended technicolor interactions included.

• Our method is to solve the Bethe-Salpeter equation for the requisite current-current correlation functions.
• Our results suggest that the inclusion of extended technicolor interactions has a relatively small effect on S.