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

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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 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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  1. Institut für Theoretische Physik, Universität Zürich, Wintherturerstrasse 190, CH-8057, Zürich, Switzerland

    Thomas Gehrmann & Pier Francesco Monni

  2. Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA, 93106, U.S.A.

    Thomas Gehrmann

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Gehrmann, T., Monni, P.F. Antenna subtraction at NNLO with hadronic initial states: real-virtual initial-initial configurations. J. High Energ. Phys. 2011, 49 (2011). https://doi.org/10.1007/JHEP12(2011)049

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