出典:Wiktionary
From a loose analogy to the set of primary colors. The charge property has nothing to do with visible color.
color charge (countable かつ uncountable, 複数形 color charges)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/13 10:38 UTC 版)
In particle physics, color charge is a property of quarks and gluons that is related to the particles' strong interactions in the theory of quantum chromodynamics (QCD). Color charge has analogies with the notion of electric charge of particles, but because of the mathematical complications of QCD, there are many technical differences. The "color" of quarks and gluons is completely unrelated to visual perception of color. Rather, it is a name for a property that has almost no manifestation at distances above the size of an atomic nucleus. The term color was chosen because the abstract property to which it refers has three aspects, which are analogized to the three primary colors of red, green, and blue. By comparison, the electromagnetic charge has a single aspect, which takes the values positive or negative.