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tau particle

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
tau particle
n
(Physics / Nuclear Physics) Physics another name for tauon

tau particle
An elementary particle of the lepton family, having a mass about 3,550 times that of the electron, a negative electric charge, and a mean lifetime of 3 × 10-13 seconds. See Table at subatomic particle.


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They want to know why the neutrinos seem to have masses so much smaller than those of other members of their class of fundamental particles, which includes electrons and their heavy cousins, muon and tau particles.
Along with the electron and muon, the tau particle and three varieties of neutrinos are now firmly established as members of the lepton group of subatomic particles.
When discussing the experiments that led to the discovery of the tau particle, SLAC's Martin L.
 
 
 
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