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arXiv · 0712.1948

Constraining Walking and Custodial Technicolor

Roshan Foadi·Mads T. Frandsen·Francesco Sannino
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Abstract

We show how to constrain the physical spectrum of walking technicolor models via precision measurements and modified Weinberg sum rules. We also study models possessing a custodial symmetry for the S parameter at the effective Lagrangian level - custodial technicolor - and argue that these models cannot emerge from walking type dynamics. We suggest that it is possible to have a very light spin-one axial vector boson. However, in the walking dynamics the associated vector boson is heavy while it is degenerate with the axial in custodial technicolor.

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Roshan Foadi, Mads T. Frandsen, Francesco Sannino. 2007-12-12. Constraining Walking and Custodial Technicolor. https://doi.org/10.1103/physrevd.77.097702

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