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	Effektiv fältteori	Feynman-diagram
Ämnesområde	Partikelfysik	Partikelfysik
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1979	1949
Upphovsperson	Steven Weinberg	Richard Feynman
Typ	Model-independent approach	Visualization and calculation framework
Ursprungskälla	Weinberg, S. (1979). Baryon and lepton nonconserving processes. Physical Review Letters, 43(21), 1566.	Feynman, R. P. (1949). The Theory of Positrons. Physical Review, 76(6), 749–759.
Alias	EFT, effective theory, operator product expansion	Feynman graph, interaction diagram
Närliggande	3	3
Sammanfattning	Effective Field Theory (EFT) is a general framework for studying physics at low energies in terms of the relevant degrees of freedom, without requiring complete knowledge of high-energy physics. By expanding in powers of energy, EFT provides model-independent parameterizations of new physics effects and systematic methods for computing precision predictions of the Standard Model.	Feynman diagrams are graphical representations of particle interactions introduced by Richard Feynman in 1949. They provide an intuitive and systematic way to visualize and calculate amplitudes for quantum field theory processes, converting complex mathematical expressions into geometric pictures that reveal the underlying physics.