Analysis of an extended scalar sector with S₃ symmetry

2014/04/30 by Dipankar Das, Ujjal Kumar Dey · 1 citation
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1103/physrevd.89.095025

published as Phys. Rev. D 89, 095025 (2014) · One Eq. added, minor changes in figures and subsequent texts, version accepted in Phys. Rev. D, appendix included in the arXiv version

arxiv created 2014/05/19 · arxiv updated 2014/05/28

Abstract

We investigate the scalar potential of a general S₃-symmetric three-Higgs-doublet model. The outcome of our analysis does not depend on the fermionic sector of the model. We identify a decoupling limit for the scalar spectrum of this scenario. In view of the recent LHC Higgs data, we show our numerical results only in the decoupling limit. Unitarity and stability of the scalar potential demand that many new scalars must be lurking below 1 TeV. We provide numerical predictions for h→ γγ and h→ Z γ signal strengths which can be used to falsify the theory.

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