Feynman rules

E9109

computational method in theoretical physics prescription in quantum field theory

Feynman rules are a set of prescriptions in quantum field theory that translate particle interactions into mathematical expressions using Feynman diagrams to compute scattering amplitudes and other physical quantities.

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All labels observed (2)

Label	Occurrences
Feynman rules canonical	2
Feynman rules for quantum electrodynamics	1

Statements (50)

Predicate	Object
instanceOf	computational method in theoretical physics ⓘ prescription in quantum field theory ⓘ
appliesTo	interacting quantum fields ⓘ particle interactions ⓘ perturbative expansions in coupling constants ⓘ scattering processes ⓘ
assumes	expansion in powers of coupling constants ⓘ perturbation theory ⓘ
basedOn	Feynman diagrams ⓘ
component	integration over internal momenta ⓘ momentum conservation at each vertex ⓘ propagator factors for internal lines ⓘ symmetry factors for diagrams ⓘ vertex factors for interaction points ⓘ wavefunction factors for external lines ⓘ
dependsOn	choice of Lagrangian density ⓘ choice of gauge ⓘ field content of the theory ⓘ interaction terms in the Lagrangian ⓘ
describedAs	set of prescriptions for translating diagrams into mathematical expressions ⓘ
field	quantum field theory ⓘ
goal	prediction of measurable quantities in particle experiments ⓘ systematic translation of Feynman diagrams into integrals ⓘ
hasVariant	Feynman rules for quantum chromodynamics ⓘ Feynman rules self-linksurface differs ⓘ surface form: Feynman rules for quantum electrodynamics Feynman rules for scalar field theory ⓘ Feynman rules for the Standard Model ⓘ Feynman rules in Euclidean space ⓘ Feynman rules in Minkowski space ⓘ Feynman rules in canonical quantization ⓘ Feynman rules in momentum space ⓘ Feynman rules in path integral formalism ⓘ Feynman rules in position space ⓘ
introducedBy	Richard Feynman ⓘ
relatedTo	Dyson series ⓘ S-matrix ⓘ Wick’s theorem ⓘ path integral formulation of quantum mechanics ⓘ time-ordered products ⓘ
usedFor	computing correlation functions ⓘ computing cross sections ⓘ computing decay rates ⓘ computing scattering amplitudes ⓘ perturbative calculations ⓘ
usedIn	high-energy particle physics ⓘ loop calculations ⓘ quantum chromodynamics computations ⓘ quantum electrodynamics computations ⓘ renormalization procedures ⓘ tree-level calculations ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Feynman diagrams → relatedConcept → Feynman rules ⓘ

Feynman rules → hasVariant → Feynman rules self-linksurface differs ⓘ

this entity surface form: Feynman rules for quantum electrodynamics

reduced Planck constant → appearsIn → Feynman rules ⓘ