2017/09/15 by Javi Serra, Riccardo Torre · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Brother #Computer science #Cosmology and Gravitation Theories #Higgs boson #Naturalness #Particle physics #Particle physics theoretical and experimental studies #Physics #Sociology #hep-ph
paper · pdf · doi:10.1103/physrevd.97.035017
published as Phys. Rev. D 97, 035017 (2018) · 12 pages, 2 figures, 3 appendices
arxiv created 2017/09/15 · openalex publication_date 2018/02/27 · arxiv updated 2018/03/07 · openalex created_date 2018/03/29 · openalex updated_date 2026/08/05
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 canceled via the introduction of a standard model neutral top partner. We show that the inherent Z2 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%, compatibly with the observed Higgs mass. We briefly discuss the particular phenomenological features of this scenario.