Non-thermal Dark Matter Production from the Electroweak Phase
  Transition: Multi-TeV WIMPs and "Baby-Zillas"
  Particle production at the end of a first-order electroweak phase transition
may be rather generic in theories beyond the standard model. Dark matter may
then be abundantly produced by this mechanism if it has a sizable coupling to
the Higgs field. For an electroweak phase transition occuring at a temperature
T_EW ~ 50-100 GeV, non-thermally generated dark matter with mass M_X > TeV will
survive thermalization after the phase transition, and could then potentially
account for the observed dark matter relic density in scenarios where a thermal
dark matter component is either too small or absent. Dark matter in these
scenarios could then either be multi-TeV WIMPs whose relic abundace is mostly
generated at the electroweak phase transition, or "Baby-Zillas" with mass M_GUT
>> M_X >> v_EW that never reach thermal equilibrium in the early universe.
