charmed quark

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Related to charm quark: bottom quark, antiquark

charmed quark

[¦chärmd ′kwärk]
(particle physics)
A quark with an electric charge of +⅔, baryon number of ⅓, zero strangeness, and charm of +1. Symbolized c.
References in periodicals archive ?
Among them are calculations focused on D mesons, which also contain charm quarks.
At HERA, smashups between protons and either electrons or positrons create many particles harboring exotic quarks known as charm quarks.
One type is made of two charm quarks and an up quark; the other is made of two charm quarks and a down quark.
The previously known particle, X(4140), and its cousins--X(4274), X(4500) and X(4700)--are composed of two charm quarks and two strange quarks.
Charm quarks, 100 times heavier than the up and down quarks that form normal matter, are significantly decelerated by their passage through quark-gluon plasma, offering scientists a unique tool to probe its properties.
Each particle contains two charm quarks and two strange quarks.
Strange and charm quarks constitute the second generation, while the top and bottom varieties make up the third.
At that time, the experimenters had been bombarding thin films of copper or diamond with a beam of particles known as sigmas to create particles containing charm quarks (SN: 7/6/02, p.