The Brother Higgs

Abstract

We present a version of the twin Higgs mechanism with minimal symmetry structure and particle content. The model is built upon a composite Higgs theory with global $SO(6)/SO(5)$ symmetry breaking. The leading contribution to the Higgs potential, from the top sector, is solely cancelled via the introduction of a Standard Model neutral top partner. We show that the inherent $Z_2$ breaking of this construction is under control and of the right size to achieve electroweak symmetry breaking, with a fine-tuning at the level of $5-10\%$, and compatibly with the observed Higgs mass. We briefly discuss the particular phenomenological features of this scenario.

arXiv comment12 pages, 2 figures, 3 appendices

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Cited by in corpus (22)

• Trigonometric Parity for the Composite Higgs
• Composite Twin Dark Matter
• Light Hidden Mesons through the Z Portal
• Discovering the Twin Higgs Boson with Displaced Decays
• Testing the Scalar Sector of the Twin Higgs Model at Colliders
• Minimal Neutral Naturalness Model
• Twin Higgs Portal Dark Matter
• Hypercharged Naturalness
• Singleton Portals to the Twin Sector
• EFTs meet Higgs Nonlinearity, Compositeness and (Neutral) Naturalness
• Collider Signals of the Mirror Twin Higgs through the Hypercharge Portal
• Displaced Vertices from Hidden Glue
• Neutral-naturalness from a holographic SO(6)/SO(5) composite Higgs model
• Twin Quark Dark Matter From Cogenesis
• Twin Cogenesis
• Tree-level Quartic for a Holographic Composite Higgs
• Breaking Mirror Twin Color
• Composite Higgs at high transverse momentum
• Holographic Completion of Minimal Neutral Naturalness Model and Deconstruction
• Review of Neutral Naturalness
• Phase transition and gravitational waves in maximally symmetric composite Higgs model
• Precision Higgs Couplings in Neutral Naturalness Models: an Effective Field Theory Approach