Z -> b\bar{b} Versus Dynamical Electroweak Symmetry Breaking involving the Top Quark

Details Z -> b\bar{b} Versus Dynamical Electroweak Symmetry Breaking involving the Top Quark Z -> b\bar{b} Versus Dynamical Electroweak Symmetry Breaking involving the Top Quark

1994-09-14

arxiv.org/abs/hep-ph/9409315v1

Phys.Rev.D51:3563-3568,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex file, 19 pages + 2 Figs., Fermilab-Pub-94/231-T

Scientific paper

10.1103/PhysRevD.51.3563

In models of dynamical electroweak symmetry breaking which sensitively involve the third generation, such as top quark condensation, the effects of the new dynamics can show up experimentally in Z->b\bar{b}. We compare the sensitivity of Z->b\bar{b} and top quark production at the Tevatron to models of the new physics. Z->b\bar{b} is a relatively more sensitive probe to new strongly coupled U(1) gauge bosons, while it is generally less sensitive a probe to new physics involving color octet gauge bosons as is top quark production itself. Nonetheless, to accomodate a significant excess in Z->b\bar{b} requires choosing model parameters that may be ruled out within run I(b) at the Tevatron.

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