2012

Dark Baryogenesis

Walker, Devin G. E.

Understand

We first suggested a scenario in which a generic, dark chiral gauge group undergoes a first order phase transition in order to generate the observed baryon asymmetry in the universe, provide a viable dark matter candidate and explain the observed baryon-to-dark matter ratio of relic abundances [arXiv:1003.0899].

  • We now provide a model in which a copy of the electroweak gauge group is added to the Standard Model.
  • We spontaneously break this new gauge group to the diagonal Z_2 center which is used to stabilize a dark matter candidate.
  • In addition to the dark matter candidate, anomaly free messenger fermions are included which transform non-trivially under all the gauge groups.

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