Wuppertal 2015 – scientific programme

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T: Fachverband Teilchenphysik

T 14: QCD (Theorie)

T 14.1: Talk

Monday, March 9, 2015, 14:00–14:15, K.12.23 (K1)

First steps towards WHIZARD + NLO — Bijan Chokoufe¹, Wolfgang Kilian², Jürgen Reuter¹, and •Christian Weiss¹ — ¹DESY Hamburg — ²Uni Siegen

WHIZARD is a multi-purpose event generator for hadron- and lepton-colliders, considering the standard model as well as a multitude of BSM models. The current version of the program is only capable of automatically performing leading-order calculations, contributions of higher virtual orders being available for some specific kinds of processes. However, many applications require at least next-to-leading order accuracy. We present a first extension of WHIZARD which can also deal with processes at next-to-leading order, using the Frixione-Kunszt-Signer subtraction scheme. The program structure is briefly explained, focussing on the various components of the calculation and the corresponding interface to one-loop programs like GoSam. Finally, first results for NLO massless QCD are presented.