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A long-overlooked heavy neutrino could help explain why matter prevailed over antimatter
Phys.org says the particle's slow decay may have let it briefly dominate the early universe's energy density.
TLDR
Phys.org reports that scientists have proposed a theory about the early universe centered on a long-overlooked heavy neutrino. Its slow decay may have let it briefly dominate the universe's energy density, potentially helping explain why matter prevailed over antimatter.
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