pith. sign in

arxiv: 0908.4272 · v2 · submitted 2009-08-28 · ✦ hep-ph

Automation of next-to-leading order computations in QCD: the FKS subtraction

Rikkert Frederix , Stefano Frixione , Fabio Maltoni , Tim Stelzer This is my paper
classification ✦ hep-ph
keywords subtractionautomationcomputationimplementationmadgraphmodelnext-to-leadingorder
0
0 comments X
read the original abstract

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.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations

    hep-ph 2014-05 accept novelty 7.0

    MadGraph5_aMC@NLO automates tree-level, NLO, shower-matched, and merged cross-section computations for collider processes in a unified flexible framework.

  2. Towards a Fully Automated Differential $\text{NNLO}_\text{EW}$ Generator for Lepton Colliders

    hep-ph 2025-12 unverdicted novelty 5.0

    A framework based on the YFS theorem enables process-independent local IR subtraction and resummation matching for automated NNLO_EW calculations in lepton collider processes.

  3. A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX

    hep-ph 2010-02 unverdicted novelty 5.0

    The POWHEG BOX provides a general computer code framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method.

  4. Octet scalars shaping LHC distributions in 4-jet final states

    hep-ph 2025-11 unverdicted novelty 4.0

    A color-octet scalar Θ pair-produced via gluons and decaying to quark pairs can account for the CMS excess in equal-mass dijet pairs at 0.95 TeV with a 65 fb cross section for the real case.

  5. Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist

    hep-ph 2025-04 unverdicted novelty 2.0

    The report reviews progress since 2021 in fixed-order computations for LHC applications and identifies processes requiring missing higher-order corrections to match anticipated experimental precision.

  6. The Monte Carlo Ecosystem in High-Energy Physics: A Primer

    hep-ph 2026-05 unverdicted

    A primer that surveys the architecture, methodologies, computational challenges, and future trajectory of the Monte Carlo event generator ecosystem in collider physics.