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===About Mesons===
: '''Mesons''' have a very short [[Half Life|half life]], [[Radioactive Decay|decaying]] via the [[Weak Nuclear Interaction|weak nuclear interaction]] or though the [[quark]]-[[antiquark]] pair [[annihilation|annihilating]] one another.
: '''Mesons''' consisting of the [[quark]]s; [[up-quark]], [[down-quark]] and [[strange-quark]] are divided into two main categories; [[π-meson]]s and [[k-mesonsmeson]]s.
: '''[[K-meson]]s''' have a [[strangeness]] of +1 or -1. However, [[π-meson]]s do not carry [[strangeness]].
: '''Mesons''' are affected by the: