PION

Pion

In particle physics, a pion is any of three subatomic particles:,, and . Each pion consists of a quark and an antiquark and is therefore a meson. Pions are the lightest mesons and they play an important role in explaining the low-energy properties of the strong nuclear force.

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pion

Noun

  1. Any of three semistable mesons, having positive, negative or neutral charge, composed of up and down quarks/antiquarks.


The above text is a snippet from Wiktionary: pion
and as such is available under the Creative Commons Attribution/Share-Alike License.

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