Inquiring Minds
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An international collaboration of scientists at the Department of Energy's Fermi National Accelerator Laboratory announced on July 21, 2000 the first direct
evidence for the subatomic particle called the tau neutrino, the third kind of neutrino known to particle physicists. They reported four instances of a neutrino interacting with an atomic nucleus to produce a charged particle called a tau lepton, the signature of a tau neutrino.
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| last modified 07/09/2000 email Fermilab |