Dark matter and gravitational waves from a dark big bang

  title={Dark matter and gravitational waves from a dark big bang},
  author={Katherine Freese and Martin Wolfgang Winkler},
  journal={Physical Review D},
The Hot Big Bang is often considered as the origin of all matter and radiation in the Universe. Primordial nucleosynthesis (BBN) provides strong evidence that the early Universe contained a hot plasma of photons and baryons with a temperature $T>\text{MeV}$. However, the earliest probes of dark matter originate from much later times around the epoch of structure formation. In this work we describe a scenario in which dark matter (and possibly dark radiation) can be formed around or even after… 

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