The Littlest Higgs Model and One-Loop Electroweak Precision Constraints

Details The Littlest Higgs Model and One-Loop Electroweak Precision Constraints The Littlest Higgs Model and One-Loop Electroweak Precision Constraints

2004-09-14

arxiv.org/abs/hep-ph/0409163v1

Tsukuba 2004, Supersymmetry and Unification of Fundamental Interactions, 921-924.

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages; 2 figures; Talk presented at SUSY'04

Scientific paper

We present in this talk the one-loop electroweak precision constraints in the Littlest Higgs model, including the logarithmically enhanced contributions from both fermion and scalar loops. We find the one-loop contributions are comparable to the tree level corrections in some regions of parameter space. A low cutoff scale is allowed for a non-zero triplet VEV. Constraints on various other parameters in the model are also discussed. The role of triplet scalars in constructing a consistent renormalization scheme is emphasized.

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