Editing Preon (section)

===Motivation for preon models===
Several models have been proposed in an attempt to provide a more fundamental explanation of the results in experimental and theoretical particle physics, using names such as "[[Parton (particle physics)|parton]]" or "preon" for the hypothetical basic particle constituents.

Preon theory is motivated by a desire to replicate in particle physics the achievements of the [[periodic table]] in Chemistry, which reduced 94&nbsp;naturally occurring elements to combinations of just three building-blocks (proton, neutron, electron). Likewise, the [[Standard Model]] later organized the "particle zoo" of [[hadrons]] by reducing several dozen particles to combinations at a more fundamental level of (at first) just three [[quarks]], consequently reducing the huge number of arbitrary constants in mid-twentieth-century particle physics prior to the [[Standard Model]] and [[quantum chromodynamics]].

However, the particular preon model discussed below has attracted comparatively little interest among the particle physics community to date, in part because no evidence has been obtained so far in collider experiments to show that the fermions of the Standard Model are composite.