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Manuscript Title: Numerical evaluation of virtual corrections to multi-jet production in massless QCD
Authors: Simon Badger, Benedikt Biedermann, Peter Uwer, Valery Yundin
Program title: NJET
Catalogue identifier: AEPF_v1_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 184(2013)1981
Programming language: C++, Python.
Computer: PC/Workstation.
Operating system: No specific requirements - tested on Scientific Linux 5.2. and Mac OS X 10.7.4.
Keywords: QCD, Unitarity methods, NLO corrections.
PACS: 12.38.Bx, 13.85.-t.
Classification: 11.5.

External routines: QCDLoop (http://qcdloop.fnal.gov/), qd (http://crd.lbl.gov/ dhbailey/mpdist/), both included in the distribution file.

Nature of problem:
Evaluation of virtual corrections for multi-jet production in massless QCD

Solution method:
Purely numerical approach based on tree amplitudes obtained via BerendsGiele recursion combined with unitarity method.

Restrictions:
Full colour and helicity summed corrections only up to 5 final state jets.

Running time:
Full colour and helicity summed 2->4 channels take around 0.5-8s per point depending on the number of fermion lines. Realistic times obtained during Monte Carlo integration will be highly dependent on the specific application.