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arXiv · 2509.14326

pbhstat: A Python package for calculating the primordial black hole abundance

Philippa S. Cole·Jacopo Fumagalli
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Abstract

We present pbhstat, a publicly available Python package designed to compute the mass function and total abundance of primordial black holes (PBHs) from a given primordial power spectrum. The package offers a modular framework using multiple statistical approaches, including Press-Schechter theory, peaks theory, and formalisms based on the non-linear compaction function. Currently, the implementation is limited to scenarios with nearly Gaussian initial conditions.

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Philippa S. Cole, Jacopo Fumagalli. 2025-09-17. pbhstat: A Python package for calculating the primordial black hole abundance. https://arxiv.org/abs/2509.14326

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