Strong dynamics, minimal flavor and $R_b$

Details Strong dynamics, minimal flavor and $R_b$ Strong dynamics, minimal flavor and $R_b$

2011-10-24

arxiv.org/abs/1110.5248v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4pages

Scientific paper

We show how models of electroweak symmetry breaking based on strong dynamics lead to observable contributions to the Z-boson decay width to $b\bar{b}$ pairs even in the absence of any extended sector responsible for dynamical generation of the masses of the Standard Model matter fields. These contributions are due to composite vector mesons mixing with the Standard Model electroweak gauge fields. Since such vectors are generally present in any model of dynamical electroweak symmetry breaking, our results lead to new stringent constraints on models of this type.

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