Antenna subtraction at NNLO with hadronic initial states: real-virtual initial-initial configurations

Details Antenna subtraction at NNLO with hadronic initial states: real-virtual initial-initial configurations Antenna subtraction at NNLO with hadronic initial states: real-virtual initial-initial configurations

2011-07-20

arxiv.org/abs/1107.4037v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages

Scientific paper

The antenna subtraction method handles real radiation contributions in higher order corrections to jet observables. The method is based on antenna functions, which encapsulate all unresolved radiation between a pair of hard radiator partons. To apply this method to compute hadron collider observables, initial-initial antenna functions with both radiators in the initial state are required. In view of extending the antenna subtraction method to next-to-next-to-leading order (NNLO) calculations at hadron colliders, we derive the one-loop initial-initial antenna functions in unintegrated and integrated form.

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