Assertion: feynman diagram | /r/HasAspect | interpretation
Facets:
value: as a sum over particle trajectories
type: OTHER
Source sentences:
text: This definition is fine for protons and neutrons, electrons and photons, but it excludes quarks, which are permanently confined, so the modern point of view is more accommodating: a particle is anything whose interaction can be described in terms of Feynman diagrams, which have an interpretation as a sum over particle trajectories.