手法を比較

	有効場理論	ファインマン図	行列要素法
分野	素粒子物理学	素粒子物理学	素粒子物理学
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1979	1949	1988
提唱者	Steven Weinberg	Richard Feynman	K. Kondo
種類	Model-independent approach	Visualization and calculation framework	Probability calculation framework
原典	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.	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.
別名	EFT, effective theory, operator product expansion	Feynman graph, interaction diagram	MEM, matrix element calculation, amplitude evaluation
関連	3	3	3
概要	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.	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.