Composite Higgs Models and possible UV completions
Marco Serone (Trieste)

We briefly review the main ideas that led to phenomenologically viable models of new physics beyond the Standard Model (SM) where the Higgs particle is supposed to be a pseudo Nambu Goldstone Boson (pNGB) bound state of some strongly interacting theory.
A key ingredient in these constructions is played by the concept of partial compositeness.
How to consistently get such models from an underlying UV theory is an important open problem.
We will show how to construct UV completions of bottom-up models with a pNGB composite Higgs and partial compositeness, admitting a weakly coupled description of the composite sector.
This is identified as the low energy description of an SO(N) supersymmetric gauge theory with matter fields in the fundamental of the group. The Higgs is identified with certain components of matter fields in a Seiberg dual description of the theory.
The SM gauge fields are obtained by gauging a subgroup of the global group. The mass mixing between elementary SM and composite fermion fields advocated in partial compositeness arise from the flow in the IR of certain trilinear Yukawa couplings defined in the UV theory.
We explicitly construct two models of this kind.