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

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.

61 pages, 3 figures. Updated a reference

References in corpus (14)

• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Reducing full one-loop amplitudes to scalar integrals at the integrand level
• An Automated Implementation of On-Shell Methods for One-Loop Amplitudes
• Full one-loop amplitudes from tree amplitudes
• Automating dipole subtraction for QCD NLO calculations
• Next-to-Leading Order QCD Predictions for W+3-Jet Distributions at Hadron Colliders
• NLO QCD corrections to pp -> t anti-t b anti-b + X at the LHC
• Polarizing the Dipoles
• Automation of the Dipole Subtraction Method in MadGraph/MadEvent
• TeVJet: A general framework for the calculation of jet observables in NLO QCD
• Les Houches Guidebook to Monte Carlo Generators for Hadron Collider Physics
• Automating dipole subtraction
• NLO QCD corrections to pp->WW+jet+X

Cited by in corpus (88)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anomalous magnetic moment of the muon in the Standard Model
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Top-quark mass effects in double and triple Higgs production in gluon-gluon fusion at NLO
• Scalar and pseudoscalar Higgs production in association with a top-antitop pair
• Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
• Weak corrections to Higgs hadroproduction in association with a top-quark pair
• Collider Physics at the Precision Frontier
• Higgs production in association with bottom quarks
• Higgs production in association with a top-antitop pair in the Standard Model Effective Field Theory at NLO in QCD
• Higgs pair production via gluon fusion in the Two-Higgs-Doublet Model
• aMCfast: automation of fast NLO computations for PDF fits
• Theory for muon-electron scattering @ 10ppm: A report of the MUonE theory initiative
• On the maximal use of Monte Carlo samples: re-weighting events at NLO accuracy
• Event Generators for High-Energy Physics Experiments
• QCD next-to-leading-order predictions matched to parton showers for vector-like quark models
• QED at NNLO with McMule
• NLO QCD corrections to five-jet production at LEP and the extraction of alpha_s(M_Z)
• Optimising simulations for diphoton production at hadron colliders using amplitude neural networks
• PineAPPL: combining EW and QCD corrections for fast evaluation of LHC processes
• Top-quark pair production at hadron colliders: differential cross section and phenomenological applications with DiffTop
• On the reduction of negative weights in MC@NLO-type matching procedures
• Muon-electron scattering at NNLO: the hadronic corrections
• Anatomy of inclusive $t\overline{t}W$ production at hadron colliders
• Les Houches 2021: Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Using neural networks for efficient evaluation of high multiplicity scattering amplitudes
• Fully differential NLO predictions for the rare muon decay
• Enhanced $thj$ signal at the LHC with $h\to \gamma \gamma$ decay and $\mathcal{C}\mathcal{P}$-violating top-Higgs coupling
• Electroweak and QCD corrections to top-pair hadroproduction in association with heavy bosons
• A positive-weight next-to-leading order simulation of weak boson pair production
• Probing the Weinberg Operator at Colliders
• Muon-electron scattering at NNLO
• Majorana Neutrinos in Same-Sign $W^{\pm }{W}^{\pm }$ Scattering at the LHC: Breaking the TeV Barrier
• NLO Corrections to Light-Quark Mixed QCD-EW Contributions to Higgs Production
• Bhabha scattering at NNLO with next-to-soft stabilisation
• Renormalization-group improved fully differential cross sections for top pair production
• Photon Radiation with MadDipole
• NLO QCD Predictions for off-shell $t\bar{t}$ and $t\bar{t}H$ Production and Decay at a Linear Collider
• Squark production in R-symmetric SUSY with Dirac gluinos: NLO corrections
• Automated EW corrections with isolated photons: $t\bar{t}\gamma$, $t\bar{t}\gamma \gamma$ and $t\gamma j$ as case studies
• Squark Production and Decay matched with Parton Showers at NLO
• Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment
• One-loop electroweak Sudakov logarithms: a revisitation and automation
• RIP $Hb\bar{b}$: How other Higgs production modes conspire to kill a rare signal at the LHC
• Parton-shower effects in Higgs production via Vector-Boson Fusion
• NNLO subtraction for any massless final state: a complete analytic expression
• The LBK theorem to all orders
• Phenomenological analysis of associated production of $Z^0+b$ in the $b\to J/\psi X$ decay channel at the LHC
• Search for Majorana neutrinos in same-sign $WW$ scattering events from $pp$ collisions at $\sqrt{s}=13$ TeV
• Scalar leptoquark pair production at the LHC: precision predictions in the era of flavour anomalies
• RS resonance in di-final state production at the LHC to NLO+PS accuracy
• Electroweak Higgs production with HiggsPO at NLO QCD
• A Forward Branching Phase-Space Generator
• Initial-Final and Initial-Initial antenna functions for real radiation at next-to-leading order
• Lepton pair production at NNLO in QED with EW effects
• Doubly Charged Higgs Boson Production at Hadron Colliders II: A Zee-Babu Case Study
• The matrix element method at next-to-leading order for arbitrary jet algorithms
• Radiative corrections and Monte Carlo tools for low-energy hadronic cross sections in $e^{+}{e}^{-}$ collisions
• EW corrections and Heavy Boson Radiation at a high-energy muon collider
• Rare Standard Model processes for present and future hadronic colliders
• Lepton collisions in MadGraph5_aMC@NLO
• Multiple soft-photon emission at next-to-leading power to all orders
• Local analytic sector subtraction for initial- and final-state radiation at NLO in massless QCD
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• NLO QCD corrections to off-shell top-antitop production with semi-leptonic decays at lepton colliders
• T-odd Asymmetry in W+jet Events at the LHC
• Towards testing $(g-2{)}_{\tau }$ in $e^{+}{e}^{-}\to {\tau }^{+}{\tau }^{-}$: radiative corrections and projections for Belle II
• Automated next-to-leading order QCD and electroweak predictions of photon-photon processes in ultraperipheral collisions
• Three photon production to NLO+PS accuracy at the LHC
• One-loop transverse-momentum-dependent soft function at higher orders in the dimensional regulator
• Super AutoDipole
• Precision phenomenology at multi-TeV muon colliders
• Status of MadLoop/aMC@NLO
• FKS subtraction for quarkonium production at NLO
• Møller scattering at NNLO
• Higgs production via vector-boson fusion at the LHC
• Towards a Fully Automated Differential ${\text{NNLO}}_{\text{EW}}$ Generator for Lepton Colliders
• Heavy charged Higgs boson production at the LHC
• The Electroweak Sudakov approximation in SHERPA
• Higher-Order QCD prediction for dark matter pair associated with a b-jet production at the LHC
• Probing the spin correlations of $t\bar{t}$ production at NLO QCD+EW
• Optimising hadronic collider simulations using amplitude neural networks
• Perturbative QCD for the LHC
• Higgs production in association with a single top quark at the LHC
• Fully differential Higgs boson pair production at N${}^3$LO with top quark mass effects
• Applications of higher order QCD
• Automated event generation for S-wave quarkonium and leptonium production in NRQCD and NRQED
• Octet scalars shaping LHC distributions in 4-jet final states