Hadron (source code)
= Hadron
{wiki}
A <hadron> is a strongly interacting composite particle described by <quantum chromodynamics>. Familiar <hadrons> contain <quarks> and <gluons> in an overall color-neutral state. The <proton> and <neutron> are <baryons>; the <pion> is a <meson>.
The <quark model> labels ordinary hadrons by their valence content, but this does not list every dynamical constituent. Gluons and additional <quark>–<antiquark> contributions affect masses and interactions. Distinguishing a composite hadron from an <elementary particle> is useful when comparing low-energy models with scattering experiments that resolve internal structure.
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