Electroweak symmetry breaking and cold dark matter from strongly interacting hidden sector

Understand

We consider a hidden sector with new vectorlike confining gauge theories like QCD.

• Then a scale $\Lambda_H$ would be generated in the hidden sector by dimensional transmutation, and chiral symmetry breaking occurs in the hidden sector.
• Then this scale $\Lambda_H$ can play a role of the SM Higgs mass parameter, triggering electroweak symmetry breaking (EWSB).
• Thus all the mass scales of the SM sector can arise from the hidden sector.