Speaker
Ioanna Stamou
(Université libre de Bruxelles (ULB))
Description
This presentation introduces a cosmological model featuring a spectator field and investigates its connection to the formation of primordial black holes (PBHs) and dark matter. By considering fluctuations during inflation, we uncover a natural PBH formation process that doesn't rely on exotic physics in the potential and the fine-tuning issue can be avoided. Observational constraints demonstrate the model's ability to reproduce PBH abundance and mass distribution. This research sheds light on early universe dynamics and contributes to our understanding of dark matter, inflation, and PBHs.
Primary author
Ioanna Stamou
(Université libre de Bruxelles (ULB))
