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arXiv · 1701.02544

Inflationary Primordial Black Holes as All Dark Matter

Keisuke Inomata·Masahiro Kawasaki·Kyohei Mukaida·Yuichiro Tada·Tsutomu T. Yanagida
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Abstract

Following a new microlensing constraint on primordial black holes (PBHs) with $\sim10^{20}$--$10^{28}\,\mathrm{g}$~[1], we revisit the idea of PBH as all Dark Matter (DM). We have shown that the updated observational constraints suggest the viable mass function for PBHs as all DM to have a peak at $\simeq 10^{20}\,\mathrm{g}$ with a small width $\sigma \lesssim 0.1$, by imposing observational constraints on an extended mass function in a proper way. We have also provided an inflation model that successfully generates PBHs as all DM fulfilling this requirement.

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Keisuke Inomata, Masahiro Kawasaki, Kyohei Mukaida, Yuichiro Tada, Tsutomu T. Yanagida. 2017-01-10. Inflationary Primordial Black Holes as All Dark Matter. https://doi.org/10.1103/physrevd.96.043504

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