Signatures of Extra Dimensions from Upsilon Decays with a Light Gaugephobic Higgs Boson

Understand

We explore non-standard Higgs phenomenology in the Gaugephobic Higgs model in which the Higgs can be lighter than the usually quoted current experimental bound.

• The Higgs propagates in the bulk of a 5D space-time and Electroweak Symmetry Breaking occurs by a combination of boundary conditions in the extra dimension and an elementary Higgs.
• The Higgs can thus have a significantly suppressed coupling to the other Standard Model fields.
• A large enough suppression can be found to escape all limits and allow for a Higgs of any mass, which would be associated with the discovery of W' and Z' Kaluza-Klein resonances at the LHC.