Gluon
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A gluon is a type of massless elementary particle that mediates the strong interaction between quarks, acting as the exchange particle for the interaction. Gluons are massless vector bosons, thereby having a spin of 1. Wikipedia
Speed: the speed of light
Color charge: octet (8 linearly independent types)
Composition: Elementary particle
Electric charge: 0 e
Family: Gauge boson
Interactions: Strong interaction
Mass: 0 (theoretical value); < 1.3 MeV/ (experimental limit)