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21/07/2000 Tau neutrino particle is discovered

As of 2018, it is the second most recent elementary particle to the Standard Model of particle physics (the most recent is the long sought Higgs boson). The existence of Tau neutrino was first postulated in 1977. Yet, the physicists have to wait long twenty-three years for its confirmation. It was discovered in Fermilab, near Chicago.


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