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This volume provides a useful introduction to the helicity method, summarizing over ten years of research on the subject. The book requires only some familiarity with Feynman diagrams and Dirac algebra, and many examples are included to clarify the textual material. The reader will find the extensive listing of helicity amplitudes and crosssections for many of the most important QED and QCD processes at high energies, many not found in the literature previously, particularly useful.
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