pi meson

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English[edit]

Etymology[edit]

pi (π) +‎ meson

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Noun[edit]

pi meson (plural pi mesons)

  1. (archaic, formal) A pion, a type of meson
    • 2012 March-April, Jeremy Bernstein, “A Palette of Particles”, in American Scientist[1], volume 100, number 2, page 146:
      There were also particles no one had predicted that just appeared. Five of them […, i]n order of increasing modernity, […] are the neutrino, the pi meson, the antiproton, the quark and the Higgs boson.

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