Subtraction method of computing QCD jet cross sections at NNLO accuracy

Abstract

We present a general subtraction method for computing radiative corrections to QCD jet cross sections at next-to-next-to-leading order accuracy. The steps needed to set up this subtraction scheme are the same as those used in next-to-leading order computations. However, all steps need non-trivial modifications, which we implement such that that those can be defined at any order in perturbation theory. We give a status report of the implementation of the method to computing jet cross sections in electron-positron annihilation at the next-to-next-to-leading order accuracy.

6 pages, talk given at the conference "Loops and Legs in Quantum Field Theory", Sondershausen, April 2008

References in corpus (4)

• Sector Decomposition
• Resolution of singularities for multi-loop integrals
• A new subtraction scheme for computing QCD jet cross sections at next-to-leading order accuracy
• Separation of soft and collinear infrared limits of QCD squared matrix elements