alt Hacker News> "quantum chromodynamics"
I had to google it: "the study of the strong interaction between quarks mediated by gluons"
Replies
throwawayffffas • today at 10:14 AM
Its called chromodynamics because the interactions are described by the special unitary group of degree 3, which is the same group that describes how we perceive color interactions.
It’s the theory of colour charge essentially, counterpart to electrodynamics. Quarks have colour, rather than electrical charge. Mediating particle is the gluon, analogous to (but entirely different from) the photon