University of Minnesota
School of Physics & Astronomy

Nuclear Physics Seminar

Tuesday, September 25th 2018
11:15 am:
Nuclear Physics Seminar in Tate 301-20
Speaker: Rafid Mahbub, University of Minnesota
Subject: Primordial Black Hole formation in Inflation models

Primordial black holes form in the early universe when over-dense regions gravitationally collapse upon horizon reentry. While there are many proposed formation mechanisms, inflation is an attractive candidate due to curvature perturbations that are generated. Inflation models that exhibit an inflection point in their potentials are seen to give rise to enhancements in the power spectrum during horizon exit, which can produce PBHs, that are long-lived, at sufficient abundances- while also satisfying observational constraints. Lastly, if not all, a fraction of current dark matter content may be comprised of PBHs.

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