Feynman diagram

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Feynman diagram

n.
A diagram used in quantum electrodynamics and quantum chromodynamics to help describe and visualize the possible interactions between particles. Fermions are represented with straight lines, and bosons with wavy lines. Points of intersection indicate an interaction between the particles.

[After Richard Phillips Feynman.]

Feynman diagram

(ˈfaɪnmən)
n
(General Physics) physics a graphical representation of the interactions between elementary particles
References in periodicals archive ?
The essential ingredient, he says, is how Feynman rules are derived from first principles, and he uses the path integral approach to teach it.
The authors also explain the Feynman rules for writing out transition matrix elements from Feynman graphs.
A simplified introduction to the Feynman rules, based on a "toy" model, helps readers learn the calculational techniques without the complications of spin.