quark
Noun
Meaning
fresh unripened cheese of a smooth texture made from pasteurized milk, a starter, and rennet
(physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3
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Hypernyms
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Phrases with the word
Examples
quarks have not been observed directly but theoretical predictions based on their existence have been confirmed experimentally
Antiparticles of quarks are called antiquarks, and are denoted by a bar over the symbol for the corresponding quark, such as for an up antiquark.
A neutron composed of two down quarks and an up quark, decays to a proton composed of a down quark and two up quarks, for example.
A similar mysterious situation was with the Δ ++ baryon ; in the quark model, it is composed of three up quarks with parallel spins.
A quark may pair up with an antiquark: the quark has a color and the antiquark has the corresponding anticolor.
A quark, which will have a single color value, can form a bound system with an antiquark carrying the corresponding anticolor.