Multi-parton Loop Amplitudes and Next-to-leading Order Jet Cross-sections”

  title={Multi-parton Loop Amplitudes and Next-to-leading Order Jet Cross-sections”},
  author={Z. Bern and D. A. Kosower},
We review recent developments in the calculation of QCD loop amplitudes with several external legs, and their application to next-to-leading order jet production cross-sections. When a number of calculational tools are combined together helicity, color and supersymmetry decompositions, plus unitarity and factorization properties it becomes possible to compute multi-parton one-loop QCD amplitudes without ever evaluating analytically standard one-loop Feynman diagrams. One-loop helicity… CONTINUE READING