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arXiv · hep-ph/9209255

Technicolor Theories with Negative S

Markus A. Luty·Raman Sundrum
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Abstract

We show that the pseudo Nambu--Goldstone boson contribution to the Peskin--Takeuchi electroweak parameter $S$ can be negative in a class of technicolor theories. This negative contribution can be large enough to cancel the positive techni-hadron contribution, showing that electroweak precision tests alone cannot be used to rule out technicolor as the mechanism of electroweak symmetry breaking.

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Markus A. Luty, Raman Sundrum. 1992-11-16. Technicolor Theories with Negative S. https://doi.org/10.1103/physrevlett.70.529

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