6.5: Strong Nuclear Force

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Mar 22, 2021
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- 6.4: Weak Nuclear Force
- 7: Symmetries and Particle Physics

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The strong force is what keeps nuclei together. It is described by a theory called quantum chromodynamics (QCD), which described the forces between fermions called quarks that make up the hadrons. These forces are mediated by spin-1 bosons called gluons. Notice that this is a case where a series in powers of the coupling constant does not make a lot of sense, since higher powers have about the same value as lower powers. Such a theory is called non-perturbative.

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