charm quark

Scientific  

1. A quark with a charge of + 2/3 and a charm of +1. Its mass is greater than that of the electron and greater than that of the up quark, down quark, and strange quark, but less than that of the bottom quark and top quark.

2. Also called charmed quark

3. See Table at subatomic particle

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Example Sentences

Two sets of similar but heavier particles can pop into brief existence: the muon, muon neutrino, charm quark, and strange quark; and the tau, tau neutrino, top quark, and bottom quark.

From Science Magazine

In the 1960s, for example, rare decays of kaons hinted at the existence of the charm quark before it was directly discovered.

From Scientific American

That's because packaging the charm quark in the baryon and anticharm quark in the meson separates them, keeping them from annihilating each other.

From Science Magazine

The second family consists of the charm quark, the strange quark, the muon and the muon neutrino, where the charged fermions have greater masses than their counterparts in the first family.

From Nature

Within months, they made further discoveries that confirmed their interpretation of the particle as a charm quark.

From Nature