Paper
Antenna subtraction at NNLO with hadronic initial states: double real initial-initial configurations
Authors
Aude Gehrmann-De Ridder, Thomas Gehrmann, Mathias Ritzmann
Abstract
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 unintegrated and integrated forms. In view of extending the antenna subtraction method to next-to-next-to-leading order (NNLO) calculations at hadron colliders, we derive the full set of initial-initial double real radiation antenna functions in integrated form.