Primordial black hole formation during cosmic phase transitions

Karsten Jedamzik

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arXiv · 2406.11417

Primordial black hole formation during cosmic phase transitions

Karsten Jedamzik

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Abstract

Primordial black holes (PBHs) may be part of the dark matter. It is shown here that PBHs form more easily during cosmic phase transitions. For approximately scale-invariant primordial curvature fluctuations the PBH mass function may therefore leave a record of the thermal history of the early Universe. In particular a peak is expected on the 1.9 solar mass scale due to the cosmic QCD transition.

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Karsten Jedamzik. 2024-06-17. Primordial black hole formation during cosmic phase transitions. https://arxiv.org/abs/2406.11417

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