Dynamical symmetry breaking: a route to the strong, electroweak and dark matter interactions

Physics Seminar
Tuesday, April 15, 2014 at 16:00 - GSSI, Main Lecture Hall

Oscar Cata, LMU Munich


The discovery of the Higgs boson at the LHC strongly validates the Standard Model as the low-energy theory of the electroweak interactions. However, the nature of the mechanism triggering electroweak symmetry breaking (EWSB) remains unresolved, all the more so since no traces of new physics have been detected so far. In this talk I will discuss the possibility of EWSB being driven by a new-physics sector, strongly-coupled around the TeV scale, and how it would manifest itself at low energies.

In particular, I will explain in considerable detail the systematics (and subtleties) of the effective field theories associated with these scenarios. I will also comment on specific models where these hypothetical new-physics states could be rather light yet go by almost undetected in electroweak precision tests. Finally, I will show how similar ideas could be applied to dark matter interactions.