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Reheating-Induced Axion Dark Matter After Low Scale Inflation

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arxiv 2006.09389 v2 pith:GV73T7EV submitted 2020-06-16 hep-ph astro-ph.CO

Takeshi Kobayashi , Lorenzo Ubaldi This is my paper
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A kinetic mixing between the axion and the inflaton allows for a production of axion dark matter even if the inflationary Hubble scale is smaller than the zero-temperature axion mass. We analyze the axion dynamics in this recently discovered "inflaxion" framework, and present a new cosmological scenario where the axion drifts away from its vacuum during the reheating epoch, giving rise to the observed dark matter abundance. We discuss the implications for both the QCD axion and axion-like particles.

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Cited by 1 Pith paper

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  1. Sign-Flipping Axion Potentials via Kapitza-Type Modulation by Heavy Axions

    hep-ph 2025-09 accept novelty 6.0 of 10

    Coherent oscillations of a heavy axion change the sign of a light axion's effective potential, trapping it in a false vacuum and boosting its dark matter abundance.

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