Bosonic Topcolor

Abstract

A topcolor model is presented that contains both composite and fundamental scalar fields. Strong dynamics accounts for most of the top quark mass and part of the electroweak symmetry breaking scale. The fundamental scalar is weakly coupled and transmits its share of electroweak symmetry breaking to the light fermions. The model is allowed by the current experimental bounds, and can give a potentially large contribution to $D^0-\overline{D^0}$ mixing.

Comments: Talk given by A. Aranda at DPF 2000, Ohio State, August 2000