Neutrinos come in three 'flavours', as do antineutrinos, and they all change flavour as they travel. New measurements of the mixing of different neutrinos may help to explain why our Universe is made of matter and not antimatter.
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O'Keeffe, H. A deliberate mix-up in flavour. Nature 533, 327–328 (2016). https://doi.org/10.1038/533327a
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DOI: https://doi.org/10.1038/533327a
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