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Joint INFN-UNIMI-UNIMIB Pheno Seminars
Infrared subtraction beyond NLO
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Europe/Zurich
Location: Milan Bicocca University Physics Department
Piazza della Scienza 3
U2 room 5017
Description
I present a new method for the local subtraction of infrared divergences at next-to-next-to-leading order (NNLO) in QCD. The method aims at minimising the complexity of the problem through a partition of the phase space, still allowing an analytic integration of the ensuing subtraction counterterms. A connection between infrared subtraction and factorisation of scattering amplitudes to all orders in perturbation theory is then traced, enabling the construction of subtraction counterterms beyond NNLO.
