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Sea Quarks | by mrkism
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Sea Quarks

Hadrons, along with the valence quarks (qv) that contribute to their quantum numbers, contain virtual quark–antiquark (qq) pairs known as sea quarks (qs). Sea quarks form when a gluon of the hadron's color field splits; this process also works in reverse in that the annihilation of two sea quarks produces a gluon. The result is a constant flux of gluon splits and creation colloquially known as "the sea". Sea quarks are much less stable than their valence counterparts, and they typically annihilate each other within the interior of the hadron. Despite this, sea quarks can hadronize into baryonic or mesonic particles under certain circumstances.

 

Source: en.wikipedia.org/wiki/Quark#Sea_quarks

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Taken on August 30, 2011