Meson

A type of hadron with whole-number units of spin. This family includes the pion, kaon, and eta. It is made up of a quark and its antimatter counterpart, bonded together. Mesons have a short mean life (less than 10-8 second) because (in the case of pi-zero meson) the quark and antiquark can soon annihilate one another.

See also: Blackett, Patrick Maynard Stuart, B-meson, Charmonium, Hadrons, Kaon, Pion, Yukawa, Hideki.

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Subjects: Physics