Automation of next-to-leading order computations in QCD: the FKS subtraction. We present the complete automation of the universal subtraction formalism proposed by Frixione, Kunszt, and Signer for the computation of any cross section at the next-to-leading order in QCD. Given a process, the only ingredient to be provided externally is the infrared- and ultraviolet-finite contribution of virtual origin. Our implementation, currently restricted to the case of e+e- collisions, is built upon and works in the same way as MadGraph. It is particularly suited to parallel computation, and it can deal with any physical process resulting from a theory implemented in MadGraph, thus including the Standard Model as well as Beyond the Standard Model theories. We give results for some sample processes that document the performances of the implementation, and show in particular how the number of subtraction terms has an extremely mild growth with final-state multiplicity.

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  1. Hespel, Beno^ıt; López-Val, David; Vryonidou, Eleni: Higgs pair production via gluon fusion in the two-Higgs-doublet model (2014)
  2. Anastasiou, Charalampos; Herzog, Franz; Lazopoulos, Achilleas: The fully differential decay rate of a Higgs boson to bottom-quarks at NNLO in QCD (2012)
  3. Alwall, Johan; Herquet, Michel; Maltoni, Fabio; Mattelaer, Olivier; Stelzer, Tim: MadGraph 5: going beyond (2011)
  4. Boughezal, Radja; Ridder, Aude Gehrmann-De; Ritzmann, Mathias: Antenna subtraction at NNLO with hadronic initial states: double real radiation for initial-initial configurations with two quark flavours (2011)
  5. Chung, C.H.; Krämer, Michael; Robens, T.: An alternative subtraction scheme for next-to-leading order QCD calculations (2011)
  6. Frixione, Stefano: Colourful FKS subtraction (2011)
  7. Frixione, Stefano; Stoeckli, Fabian; Torrielli, Paolo; Webber, Bryan R.: NLO QCD corrections in Herwig++ with MC@NLO (2011)
  8. Hirschi, Valentin; Frederix, Rikkert; Frixione, Stefano; Garzelli, Maria Vittoria; Maltoni, Fabio; Pittau, Roberto: Automation of one-loop QCD computations (2011)
  9. Ita, Harald: Susy theories and QCD: numerical approaches (2011)
  10. Alioli, Simone; Nason, Paolo; Oleari, Carlo; Re, Emanuele: A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX (2010)
  11. Binoth, T.; Boudjema, F.; Dissertori, G.; Lazopoulos, A.; Denner, A.; Dittmaier, S.; Frederix, R.; Greiner, N.; Höche, S.; Giele, W.; Skands, P.; Winter, J.; Gleisberg, T.; Archibald, J.; Heinrich, G.; Krauss, F.; Ma{^ı}tre, D.; Huber, M.; Huston, J.; Kauer, N.; Maltoni, F.; Oleari, C.; Passarino, G.; Pittau, R.; Pozzorini, S.; Reiter, T.; Schumann, S.; Zanderighi, G.: A proposal for a standard interface between Monte Carlo tools and one-loop programs (2010)
  12. Frederix, R.; Gehrmann, T.; Greiner, N.: Integrated dipoles with MadDipole in the MadGraph framework (2010)
  13. Gehrmann, T.; Greiner, N.: Photon radiation with MadDipole (2010)
  14. Glover, E.W.Nigel; Pires, Joao: Antenna subtraction for gluon scattering at NNLO (2010)
  15. Mastrolia, P.; Ossola, G.; Reiter, T.; Tramontano, F.: Scattering amplitudes from unitarity-based reduction algorithm at the integrand-level (2010)
  16. Torrielli, Paolo; Frixione, Stefano: Matching NLO QCD computations with PYTHIA using MC@NLO (2010)