Feynman diagram
Sign in to saveAlso known as Feynman rules
pictorial representations of the behavior of subatomic particles
Wikidata facts
- Instance of
- method
- Subclass of
- diagram
- Named after
- Richard Feynman
- Image
- The Drell-Yan process for lepton pair production.svg
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- Commons category
- Feynman diagrams
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via Wikidata · CC0
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Encyclopedic overview
In this Feynman diagram, an electron (e) and a positron (e) annihilate, producing a photon (γ, represented by the blue sine wave) that becomes a quark–antiquark pair (quark q, antiquark q̄), after which the antiquark radiates a gluon (g, represented by the green helix).
In theoretical physics, a Feynman diagram is a pictorial representation of the mathematical expressions describing the behavior and interaction of subatomic particles. The scheme is named after American physicist Richard Feynman, who introduced the diagrams in 1948.
Excerpted from Wikipedia’s “Feynman diagram” article, available under the CC BY-SA 4.0 licence.