We present a new class of composite Higgs models where an adjustable treelevel 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[A5, A6]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.
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We are grateful to Nima Arkani-Hamed for collaboration at the early stages of this project. We also thank Kaustubh Agashe, Brando Bellazzini, Zackaria Chacko, Jack Collins, Yuri Shirman, Raman Sundrum and John Terning for useful discussions. We thank the Mainz Institute for Theoretical Physics for its hospitality while this work was in progress. C.C. and M.G. also thank the Aspen Center for Physics - supported in part by NSF-PHY-1607611 - for its hospitality while working on this project. C.C. and O.T. are supported in part by the NSF grant PHY-1719877. MG is supported by the NSF grant PHY-1620074 and the Maryland Center for Fundamental Physics.
© 2018, The Author(s).
- Beyond Standard Model
- Field Theories in Higher Dimensions
- Technicolor and Composite Models