On-Shell Methods in Perturbative QCD

Abstract

We review on-shell methods for computing multi-parton scattering amplitudes in perturbative QCD, utilizing their unitarity and factorization properties. We focus on aspects which are useful for the construction of one-loop amplitudes needed for phenomenological studies at the Large Hadron Collider.

49 pages, 15 figures. v2: minor typos corrected

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