On June 24, 1927, American physicist and Nobel Laureate Martin Lewis Perl was born. He is best known for his discovery of the tau lepton, a subatomic massive particle with a negative charge. The tau, which he found in the mid-1970s, was the first evidence of a third “generation” of fundamental particles. The tau lepton (τ, also called the tau particle, tauon or simply tau) is an elementary particle similar to the…Read more
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