Corpus ID: 235458454

Cannibalism's lingering imprint on the matter power spectrum

  title={Cannibalism's lingering imprint on the matter power spectrum},
  author={Adrienne L. Erickcek and Pranjal Ralegankar and J. Shelton},
The early universe may have contained internally thermalized dark sectors that were decoupled from the Standard Model. In such scenarios, the relic dark thermal bath, composed of the lightest particle in the dark sector, can give rise to an epoch of early matter domination prior to Big Bang Nucleosynthesis, which has a potentially observable impact on the smallest dark matter structures. This lightest dark particle can easily and generically have number-changing self-interactions that give rise… Expand

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