Signatures of Non-Standard Electroweak Symmetry Breaking

An excess of events at a mass of ~ 125 GeV has been reported by both ATLAS and CMS collaborations using 5/fb of data. If this excess of events is confirmed by further searches with more data, it will have extremely important consequences in the context of supersymmetric extensions of the Standard Model. We show that for a Standard Model like Higgs boson with a mass 122.5 < Mh < 127.5 GeV, several unconstrained or constrained MSSM scenarios would be excluded, while the parameters of some other scenarios would be severely restricted.This is the write-up of a talk given at the EW session in Moriond (March 2012). I summarize some non-standard electroweak scenarios, and how they predict the existence of new spin-two resonances. Spin-two resonances, whether coming from the compactification of extra-dimensions or from a new sector of strong interactions, exhibit the same interactions with the Standard Model. This is a consequence of Lorentz and CP invariance, which we assume would be preserved by the new strong sector. Although this would seem to support the holographic duality between strongly interacting theories in four-dimensions and extra-dimensional theories, I show that there is a way to distinguish between the two sides of the 'duality', which constitutes an explicit example of its breakdown