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.
Complete Text of News Release
The Story of the Neutrino
Interesting Facts and Comments
Details of the DONUT Experiment
Members of the DONUT Collaboration
The Standard Model of Elementary Particles and Forces
Photos and Graphics
Video of DONUT scientific colloquium available on-line
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