Dark Matter Is Born from Ghostly Neutrinos ⚡ экспресс
Original: "Sterile Neutrino Dark Matter as a Probe of Inflationary Reheating"
Sterile neutrinos may have arisen in the first moments after the Big Bang and become dark matter.
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Dark matter may have arisen in the first moments after the Big Bang, when space expanded lightning-fast and grew blazing hot. The invisible particles, sterile neutrinos, could preserve memory of that ancient fire and give themselves away with a faint X-ray glow.
🎯 Sterile neutrinos are so elusive that they could fly through a light-year of lead without ever colliding with an atom.
\frac{m_\phi}{T_{rh}}
ratio of inflaton mass to reheating temperature