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by jessriedel
3427 days ago
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Yea. Positive and negative muons and pions were found after WWII. The anti-proton wasn't discovered until 1955 following the construction of the Bevatron, an accelerator powerful enough to reach the proton/anti-proton rest mass of ~1 GeV (i.e., a Billion eV). https://en.wikipedia.org/wiki/Bevatron |
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