charm quark


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Related to charm quark: bottom quark, antiquark

charm quark

n. Abbr. c
The flavor of quark that has a charge of + 2/3 , has a mass about 2,450 times that of an electron, and belongs to the second generation of elementary fermions. Also called charmed quark.
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Noun1.charm quark - a quark with an electric charge of +2/3 and a mass 2900 times that of an electron and a charm of +1
quark - (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; "quarks have not been observed directly but theoretical predictions based on their existence have been confirmed experimentally"
References in periodicals archive ?
04639) a paper now available on the preprint server arXiv - are all excited states of a particle called Omega-c-zero (or AaAaAeAA[c]c0), which is a baryon containi two strange and one charm quark.
Heavy quarks in the region of the physical charm quark mass will beincluded in the valence approximation, and for a number of masses, which whencombined with extrapolations making use of heavy quark symmetry will facilitatethe prediction of the phenomenology and weak interactions of charm and bottom meson systems.
c], is composed by two up quarks and one charm quark (uu[bar.
The LHCb collaboration made a precise comparison between the decay lifetime of a particle called a D0meson (formed by a charm quark and an up antiquark) and its anti-matter counterpart D0 (formed by an charm antiquark and up quark), when decaying either to a pair of pions or a pair of kaons.
In the story, particle physicists at the LHC report that a pentaquark contains a charm quark and its antimatter counterpart," Terry Breen wrote in an e-mail.
s] (sb^), Upsilon (bb^), where c = charm quark, s = strange quark, b = bottom quark, etc.
The particles' masses, decay products and other data indicated a composition of a charm quark, its antimatter counterpart, two up quarks and a down quark.
dagger]) Here c = charm quark, s = strange quark, b = bottom quark.