quark model

American  

noun

Physics.

1. a scheme that explains the quantum numbers of all the baryons and mesons by assuming that baryons are composed of three quarks and mesons of a quark and an antiquark, with different combinations of quark and antiquark flavors giving different sets of quantum numbers.

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Example Sentences

Since their work, kaons have been used to discover strangeness and the breaking of parity and CP symmetries, to build the quark model and the standard model, and now to search for previously unseen particle physics.

From Nature

Galileo was excommunicated for proving heliocentrism, Zweig blackballed for the quark model, Rhazes blinded for his medical teachings.

From Golf Digest

“It shows that there is a new state of matter. Although pentaquark states were thought possible from the dawn of the quark model, the theory that explains the structure of baryons like the proton, they had never been seen before.”

From The Guardian

The quark model neatly explained all these peculiar particles.

From Scientific American

Since then the quark model has been extremely successful, and is now a cornerstone of our understanding of particle physics.

From Scientific American