Precise predictions for LHC using a GOLEM

Details Precise predictions for LHC using a GOLEM Precise predictions for LHC using a GOLEM

2008-07-03

arxiv.org/abs/0807.0605v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contribution to the Proceedings of the 9th DESY workshop on "Loops and Legs in Quantum Field Theory", Sondershausen, April 200

Scientific paper

10.1016/j.nuclphysbps.2008.09.08

In this talk we present recent next-to-leading order results relevant for LHC phenomenology obtained with the GOLEM method. After reviewing the status of this Feynman diagrammatic approach for multi-leg one-loop calculations we discuss three applications: the loop-induced process gg -> Z^*Z^* and the virtual corrections to the five and six point processes qq -> ZZg and u ubar -> s sbar c cbar. We demonstrate that our method leads to representations of such amplitudes which allow for efficient phase space integration. In this context we propose a reweighting technique of the leading order unweighted events by local K-factors.

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