Comparer des méthodes

	Diagramme de Feynman	Théorie des champs effectifs	Méthode de l'élément matriciel
Domaine	Physique des particules	Physique des particules	Physique des particules
Famille	Process / pipeline	Process / pipeline	Process / pipeline
Année d'origine	1949	1979	1988
Auteur d'origine	Richard Feynman	Steven Weinberg	K. Kondo
Type	Visualization and calculation framework	Model-independent approach	Probability calculation framework
Source fondatrice	Feynman, R. P. (1949). The Theory of Positrons. Physical Review, 76(6), 749–759.	Weinberg, S. (1979). Baryon and lepton nonconserving processes. Physical Review Letters, 43(21), 1566.	Kondo, K. (1988). Dynamical likelihood method for reconstruction of events produced by the top-quark pair in the lepton + jets channel at hadron colliders. Journal of the Physical Society of Japan, 57(12), 4126–4140.
Alias	Feynman graph, interaction diagram	EFT, effective theory, operator product expansion	MEM, matrix element calculation, amplitude evaluation
Apparentées	3	3	3
Résumé	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.	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.	The Matrix Element Method (MEM) is a powerful analysis technique that leverages quantum field theory amplitudes to extract maximum physics information from individual events. By comparing observed detector signatures to predictions from matrix elements, MEM provides unbiased, model-independent measurements with excellent theoretical precision and sensitivity to new physics.