Exploring holographic Composite Higgs models

Understand

Simple Composite Higgs models predict new vector-like fermions not too far from the electroweak scale, yet LHC limits are now sensitive to the TeV scale.

• Motivated by this tension, we explore the holographic dual of the minimal model, MCHM5, to understand how far naive 4D predictions are from their 5D duals.
• Interestingly, we find that the usual hierarchy among the vector-like quarks is not generic, hence ameliorating the tuning issue.
• We find that lowering the UV cutoff in the 5D picture allows for heavier top partners, while keeping the mass of the Higgs boson at its observed value.