Speaker
Elizabeth Simmons
Description
In dynamical models of electroweak symmetry breaking, one
key challenge is providing the large mass of the top quark
without causing large flavor-changing neutral currents or
excessive weak isospin violation. Adding new strong dynamics
that couples preferentially to the top quark is an interesting
solution. This talk reviews the basic ideas of topcolor,
topcolor-assisted technicolor, and top seesaw models and
introduces the "top triangle moose" model as a low-energy
effective theory that can interpolate between various models
of this kind. Recent data from the Tevatron and the LHC is
used to constrain the various new states (colorons, top-pions,
composite higgs bosons, top partners) present in these
models and suggest which model-building directions are the
most promising.
