The Higgs Boson as a Gauge Field in Extra Dimensions

摘要

I review, at a general non-technical level, the main properties of models in extra dimensions where the Higgs field is identified with some internal component of a gauge field. The Standard Model of fundamental interactions (SM) represents the best theory at our disposal to describe all high-energy processes we know so far. Most likely, however, it cannot be the final description of Nature. Gravity is excluded from the theory, the origin of many parameters, such as the Yukawa couplings, is unexplained and it is also afflicted by hierarchy problems.