Charm quark

The charm quark is a second-generation quark with a charge of +(2/3)e. It is the third most massive of the quarks, at 1.3 GeV (a bit more than the mass of the proton). It was predicted in 1970 by Sheldon Glashow, John Iliopoulos, and Luciano Maiani, and first observed in 1974, with the discovery of the J/ψ particle by groups at SLAC and BNL.

Related Topics:
Quark - E - GeV - Proton - 1970 - Sheldon Glashow - John Iliopoulos - Luciano Maiani - 1974 - J/ψ - SLAC - BNL

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