All-Order Corrections and Multi-Jet Rates

Details All-Order Corrections and Multi-Jet Rates All-Order Corrections and Multi-Jet Rates

2010-01-25

arxiv.org/abs/1001.4463v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages. Talk given at RADCOR 2009 - 9th International Symposium on Radiative Corrections (Applications of Quantum Field Theor

Scientific paper

We discuss results from a recently proposed all-order description of hard, radiative corrections to certain multi-jet processes at hadron colliders. The description is based on obtaining an all-order estimate of the t-channel singularities of scattering amplitudes. As a simple example, we illustrate the similarities between qQ and qg-scattering. In particular, we discuss how at tree-level, all non-suppressed helicity-amplitudes for these processes consist of a pure t-channel pole. This structure is used in the construction of all-order approximations.

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