Technifermion Representations and Precision Electroweak Constraints

Details Technifermion Representations and Precision Electroweak Constraints Technifermion Representations and Precision Electroweak Constraints

2005-09-12

arxiv.org/abs/hep-ph/0509109v2

Phys.Lett.B632:92-98,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, latex

Scientific paper

10.1016/j.physletb.2005.10.022

We discuss the selection of fermion representations in technicolor models with a view toward minimizing technicolor contributions to the precision electroweak $S$ parameter. We present and analyze models that involve one technifermion SU(2)$_L$ doublet with standard-model singlet technifermion sectors that lead to walking behavior, which further reduces $S$. We also consider models that have technifermions in higher-dimensional representations and study embeddings in extended technicolor theories.

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