Precise predictions for LHC using a GOLEM
  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. 
T. Binoth, A. Guffanti, J.-Ph. Guillet, G. Heinrich, S. Karg, N.   Kauer, P. Mertsch, T. Reiter, J. Reuter, G. Sanguinetti