Elementary particle

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Elementary particles included in the Standard Model.

In particle physics, an elementary particle or fundamental particle is a particle whose substructure (domain of the bigger structure which shares the similar characteristics of the domain) is unknown, thus it is unknown whether it is composed of other particles.


  • One of the most natural questions when one looks at the mass of uncorrelated data on elementary particle interactions is whether a systematic pattern is emerging from this complexity. The penetration of controlled laboratory experiments into the multi-Bev energy region can only make such a question more acute.
    • R. E. Behrends, J. Dreitlein, C.Fronsdal and W. Lee, "Simple groups and strong interaction symmetries", Revs. Modern Phys. (1962)

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