Non-Abelian family symmetries as portals to dark matter
  Non-Abelian family symmetries offer a very promising explanation for the
flavour structure in the Standard Model and its extensions. We explore the
possibility that dark matter consists in fermions that transform under a family
symmetry, such that the visible and dark sector are linked by the familons -
Standard Model gauge singlet scalars, responsible for spontaneously breaking
the family symmetry. We study three representative models with non-Abelian
family symmetries that have been shown capable to explain the masses and mixing
of the Standard Model fermions. One of our central results is the possibility
to have dark matter fermions and at least one familon with masses on and even
below the experimentally accessible TeV scale. In particular we discuss the
characteristic signatures in collider experiments from light familon Fields
with a non-Abelian family symmetry, and we show that run I of the LHC is
already testing this class of models.
