b quark

Or b-quark

noun

1. Physics.,  bottom quark.

Example Sentences

Some rare decays of a B quark involve a daisy chain of reactions, ending in a different, lighter kind of quark and a pair of lightweight particles called leptons, either electrons or their plump cousins, muons.

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The main character, or perhaps villain, in this drama is a particle called a B quark, one of six varieties of quark that compose heavier particles like protons and neutrons.

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The Higgs field uses the Higgs boson to interact with other particles, like the b quark, and give them mass.

Read more on Scientific American

Both particles contain one beauty, or b, quark, one strange quark and one down quark.

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Their “spin” changes their configuration around, in the Xi_b’- state, the spins of the two lighter quarks point in the opposite direction to the b quark, whereas in the Xi_b*- state they are aligned.

Read more on Forbes