Wiktionary
antiquarks
n. (plural of antiquark English)
Usage examples of "antiquarks".
The elementary particles of the standard model have a very limited assortment of electric charges: The quarks and antiquarks have electric charges of one-third or two-thirds, and their negatives, while the other particles have electric charges of zero, one, or negative one.
Somehow the Snark is losing energy by separating quarks and antiquarks along its path and making them into forward jets, just as a normal charged particle loses energy by separating electrons from atoms.