Baryons are a group of composite particles that contain three quarks (or anti-quarks) that are held together by the strong nuclear force (mediated by [[gluons]]) and exemplify the theory of confinement. The most notable examples of baryons are the nucleons (protons and neutrons). | Baryons are a group of composite particles that contain three quarks (or anti-quarks) that are held together by the strong nuclear force (mediated by [[gluons]]) and exemplify the theory of confinement. The most notable examples of baryons are the nucleons (protons and neutrons). |