How Were Leptons Discovered and Measured?

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http://hyperphysics.phy-astr.gsu.edu/hbase/Particles/lepton.html
how were these things measured+discovered? are any of these theoretical particles? can't seem to find much info about how and where the stats on these particles were measured ANYWHERE! arghh not even googles working
 
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malawi_glenn said:
thanks a lot there just interested in learning stuff other people don't know heh for school
 
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