Exponential production of dark matter χ (red) from heat bath particles (black). Selected for a Synopsis in Physics and an Editors’ Suggestion.

From the article:

Dark Matter from Exponential Growth
Torsten Bringmann, Paul Frederik Depta, Marco Hufnagel, Joshua T. Ruderman, and Kai Schmidt-Hoberg
Phys. Rev. Lett. 127, 191802 (2021)

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