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arXiv · 1709.05399

The Brother Higgs

Javi Serra·Riccardo Torre
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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.

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Javi Serra, Riccardo Torre. 2017-09-15. The Brother Higgs. https://doi.org/10.1103/physrevd.97.035017

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