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The bestest little Higgs

Author(s)
Schmaltz, Martin; Stolarski, Daniel; Thaler, Jesse
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Abstract
While little Higgs models provide an interesting way to address the hierarchy problem, concrete models in the literature typically face two major obstacles. First, the mechanism for generating a Higgs quartic coupling often leads to large violations of custodial symmetry. Second, there is a tension between precision electroweak observables in the gauge sector and ne-tuning in the top sector. In this work, we present a new little Higgs model which solves both of these problems. The model is based on an SO(6) SO(6)=SO(6) coset space which has custodial symmetry built in. The Higgs quartic coupling takes a particularly simple form and does not su er from the \dangerous singlet" pathology. We introduce a gauge breaking module which decouples the mass of gauge partners from the mass of top partners, allowing for natural electroweak symmetry breaking. The collider phenomenology is dominated by production and decay of the top partners, which are considerably lighter than in traditional little Higgs theories.
Date issued
2010-09
URI
http://hdl.handle.net/1721.1/64479
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Journal of High Energy Physics
Publisher
Springer Berlin / Heidelberg
Citation
Schmaltz, Martin, Daniel Stolarski, and Jesse Thaler. “The Bestest Little Higgs.” Journal of High Energy Physics 2010.9 (2010) : 1-40-40.
Version: Author's final manuscript
ISSN
1029-8479

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