Loop amplitudes in gauge theories: modern analytic approaches

Details Loop amplitudes in gauge theories: modern analytic approaches Loop amplitudes in gauge theories: modern analytic approaches

2010-12-20

arxiv.org/abs/1012.4493v2

Physics

High Energy Physics

High Energy Physics - Theory

34 pages. Invited review for a special issue of Journal of Physics A devoted to "Scattering Amplitudes in Gauge Theories." v2:

Scientific paper

This article reviews on-shell methods for analytic computation of loop
amplitudes, emphasizing techniques based on unitarity cuts. Unitarity
techniques are formulated generally but have been especially useful for
calculating one-loop amplitudes in massless theories such as Yang-Mills theory,
QCD, and QED.

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