The Fine-Tuning Problem in Little Higgs Models
Abstract
Little Higgs models represent an alternative to Supersymmetry as a solution to the Hierarchy Problem. After introducing the main physical ideas of these models, we present the fine-tuning associated to the electroweak breaking in Little Higgs scenarios. Taking into account the most general properties of this scenarios and focusing on two representative ``Little Higgs'' models, we find that the fine-tuning is much higher than suggested by the rough estimates usually made. The main sources that increase the fine-tuning in these models are identified, then they can be taken into account in order to construct a successful model.
Cite
@article{arxiv.hep-ph/0505063,
title = {The Fine-Tuning Problem in Little Higgs Models},
author = {Irene Hidalgo},
journal= {arXiv preprint arXiv:hep-ph/0505063},
year = {2007}
}
Comments
6 pages, 2 figures. Talk given at the XXXXth Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 5-12 Mar 2005