Electroweak Condensates at Standard Top Mass Values

Abstract

In the two Higgs doublet model, perturbativity breaks down below the Planck scale: For top mass values 170-180 GeV, the Yukawa coupling reaches the pole below 1000 TeV, if the ratio of vev's v_u/v_d is below 1. We discuss top condensate scenarios for 150 GeV < m_top < 200 GeV, showing that a version with two composite Higgses is a viable option. Within electroweak gauge extensions the second Higgs does not come with additional parameters, but is dictated by the symmetry.

Comments: Talk given at the XVII Kazimierz Meeting on Elementary Particle Physics ``Facing the Desert or New Physics'', Poland, May 23-27, 1994 and at IX International Workshop on High Energy Physics and Quantum Field Theory, Zvenigorod, Moscow Region, Russia, September 16-22, 1994. LaTeX code without figures, no special macros or styles needed, postscript file of complete paper including figures at http://xxx.lanl.gov/ps/hep-ph/9411313