3 ms·
> "quantum chromodynamics" I had to google it: "the study of the strong interaction between quarks mediated by gluons"
by strictnein 2mo ago
> "quantum chromodynamics"
I had to google it: "the study of the strong interaction between quarks mediated by gluons"
- _kulang 2mo agoIt’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
- throwawayffffas 2mo agoIts 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.
- mr_toad 2mo agoNow explain how quarks have flavour!
- cynicalkane 2mo agoIt's just the three dimensional nature of it plus the usual physics practice of giving things cheeky names. The vector space of (visible) colors is not acted symmetrically upon by SU(3); it doesn't transform symmetrically under charge-preserving unitary matrices. A blue strawberry with red leaves would not seem the same to us as a red strawberry with green leaves.