Introduction to Effective Field Theory
arXiv:hep-th/0701053 · doi:10.1146/annurev.nucl.56.080805.140508
Abstract
This review summarizes Effective Field Theory techniques, which are the modern theoretical tools for exploiting the existence of hierarchies of scale in a physical problem. The general theoretical framework is described, and explicitly evaluated for a simple model. Power-counting results are illustrated for a few cases of practical interest, and several applications to Quantum Electrodynamics are described.
Review article prepared for Annual Reviews of Nuclear and Particle Science, LaTex, 55 pages; new references added
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