The Higgs boson from an extended symmetry

Understand

The variety of ideas put forward in the context of a "composite" picture for the Higgs boson calls for a simple and effective description of the related phenomenology.

• Such a description is given here by means of a "minimal" model and is explicitly applied to the example of a Higgs-top sector from an SO(5) symmetry.
• We discuss the spectrum, the ElectroWeak Precision Tests, B-physics and naturalness.
• We show the difficulty to comply with the different constraints.