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Chapter 39: Problem 7

What's the role of gluons?

Short Answer

Expert verified
Gluons are elementary particles that act as the exchange particles (force carriers) for the strong force between quarks, holding them together to form protons, neutrons, and other hadron particles. Unique among the forces, gluons themselves carry color charge, leading to self-interaction.

Step by step solution

01

Define gluons

Gluons are elementary particles that mediate (or carry) the strong force in the quantum field theory of QCD - Quantum Chromodynamics. They are part of the standard model of particle physics.
02

Explain the role of gluons

Gluons are the force carrier for the strong force, the strongest of the four fundamental forces of physics, which holds quarks together to form protons, neutrons and other hadron particles. This is often referred to as color force.
03

Note the unique property of gluons

Notably, unlike the force carrier particles of the other fundamental forces, gluons themselves carry the color charge to which the strong force applies. This leads to the phenomenon of gluon self-interaction which is a crucial aspect of the strong force.

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