The Infrared Behavior of One-Loop QCD Amplitudes at Next-to-Next-to-Leading Order
Abstract
We present universal factorization formulas describing the behavior of one-loop QCD amplitudes as external momenta become either soft or collinear. Our results are valid to all orders in the dimensional regularization parameter, . Terms through (2) can contribute in infrared divergent phase space integrals associated with next-to-next-to-leading order jet cross-sections.
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