Tree-level Quartic for a Holographic Composite Higgs

Abstract

We present a new class of composite Higgs models where an adjustable tree-level Higgs quartic coupling allows for a significant reduction in the tuning of the Higgs potential. Our 5D warped space implementation is the first example of a holographic composite Higgs model with a tree-level quartic. It is inspired by a 6D model where the quartic originates from the Tr [A_5,A_6]^2 term of the gauge field strength, the same model that led to the original little Higgs construction of Arkani-Hamed, Cohen, and Georgi. Beyond the reduction of the tuning and the standard composite Higgs signatures, the model predicts a doubling of the KK states with relatively small splittings as well as a Higgs sector with two doublets in the decoupling limit.

22 pages, 4 figures

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• Neutral-naturalness from a holographic SO(6)/SO(5) composite Higgs model
• Emergence of Maximal Symmetry
• A More Natural Composite Higgs Model
• Generating a Higgs Quartic
• Gravitational waves from patterns of electroweak symmetry breaking: an effective perspective