U.S. Department of Energy

Pacific Northwest National Laboratory

Neutrinos

Mysterious and elusive particles called neutrinos morph from one type into another and back again. These “oscillations” imply that neutrinos have nonzero mass, but are also anomalously light, relative to other particles. Neutrinos may help scientists discover why the cosmos exists as we know it. There are three known neutrino types: electron neutrinos, muon neutrinos and tau neutrinos.

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