Topic summary
GeV
Extracted from the Wikipedia article Electronvolt.
Mass
For example, an electron and a positron, each with a mass of 0.511 MeV/c, can annihilate to yield 1.022 MeV of energy. A proton has a mass of 0.938 GeV/c. In general, the masses of all hadrons are of the order of 1 GeV/c, which makes the GeV/c a convenient unit of mass for particle physics: