High Energy Theory Seminar

The LHC data are severely constraining natural theories of electroweak symmetry breaking.

An important part of the constraints comes from the fact that typically the partners of the top quark in carry color and can be profusely produced at hadron colliders. Here we explore models where the top partners are not charged under QCD. In particular, we examine the power of measurements of the Higgs couplings and its impact on naturalness.