Antenna Subtraction in pQCD at NNLO

Understand

In this talk I discuss the antenna subtraction method for isolating infrared (IR) singularities of jet cross sections in perturbative QCD.

• The method is applied at next-to-next-to-leading order (NNLO) to dijet production in hadron collisions at the LHC.
• The double real radiative corrections to the dijet cross section are considered and their IR behaviour is examined.
• IR subtraction terms are constructed to absorb numerical divergences of the cross section in the single and double unresolved regions of phase space using the antenna subtraction method.