Particle Talk - Gluons

Gluons are fundamental particles that mediate the strong interaction between quarks, belonging to the gauge bosons in the Standard Model. Just as photons transmit the electromagnetic force, gluons transmit the strong force between quarks. While known to have no mass or electric charge, they possess a quantum property called color charge, which allows them to interact strongly with themselves. This enables gluons to interact directly with each other, a characteristic unique to the strong force. There are eight types of gluons in the Standard Model, and quarks and gluons are not observed in isolation due to the phenomenon of color confinement. As the distance between quarks increases, the strong interaction does not weaken; instead, the binding energy grows, and if sufficient energy is supplied, new quark-antiquark pairs are created. Conversely, at very short distances, the interaction between quarks weakens, a phenomenon known as asymptotic freedom. Gluons are also related to the energy of the strong interaction that accounts for most of the mass of protons and neutrons.