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arXiv · 1112.0963

Constraining on dynamical electroweak symmetry breaking via R_b

Hidenori S. Fukano·Kimmo Tuominen
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Abstract

New strong gauge interactions remain a viable source for the electroweak symmetry breaking. However, addressing the generation of fermion masses remains a challenge. A basic observable which provides stringent constraints on the flavor extensions of Technicolor-type models is the decay rate of the Z boson into a bbbar-pair. In this paper we provide a general framework to evaluate the resulting constraints on the technicolor theory level taking into account the contributions from the vector and axial vector mesons and discuss the consequences for phenomenology.

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Hidenori S. Fukano, Kimmo Tuominen. 2012-11-21. Constraining on dynamical electroweak symmetry breaking via R_b. https://arxiv.org/abs/1112.0963

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