Exotic Top Partners and Little Higgs

Abstract

Little Higgs models often give rise to top partners beyond the minimal ones necessary for the cancellation of quadratic divergences. We review how this occurs and discuss the phenomenology of these exotic states. We emphasize the possible importance of new pseudo-Nambu-Goldstone bosons in top partner decays. Indeed, cascade decays of exotic top partners may be the best way to discover these new bosons. We illustrate these points with a new Little Higgs construction based on an SO(10)/SO(5)^2 coset structure, which fills a gap in the model building literature. These observations motivate new search strategies for top partners at the LHC, including for final states with b-jets and a large multiplicity of electroweak bosons.

27 pages, 2 figures, 4 tables; v3: JHEP revision -- updated to include discussion of naturalness and section 2.1 expanded

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Cited by in corpus (19)

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• Beyond the Minimal Top Partner Decay
• Alternatives to an Elementary Higgs
• Littlest Higgs with T-parity: Status and Prospects
• Constraining Top partner and Naturalness at the LHC and TLEP
• Odd Top Partners at the LHC
• Top Partners Searches and Composite Higgs Models
• The Excitation of the Global Symmetry-Breaking Vacuum in Composite Higgs Models
• Tadpole-Induced Electroweak Symmetry Breaking and pNGB Higgs Models
• Search for single production of the vector-like top partner at the 14 TeV LHC
• Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma \gamma$ at the high-luminosity LHC
• Vector-like quarks with non-renormalizable interactions
• Radiatively Induced Type II seesaw and Vector-like 5/3 Charge Quarks
• Non-standard signatures of vector-like quarks in a leptophobic 221 model
• Vector-like quarks with a scalar triplet
• Composite Higgs Models with a Hidden Sector
• Phenomenology of A Little Higgs Pseudo-Axion