Automated event generation for loop-induced processes
By Valentin Hirschi, Olivier Mattelaer. 2015
188 citations recorded by the source corpus.
A bstractWe present the first fully automated implementation of cross-section computation and event generation for loop-induced processes. This work is integrated in the MadGraph5_aMC@NLO framework. We describe the optimisations implemented at the level of the matrix element evaluation, phase space integration and event generation allowing for the simulation of large multiplicity loop-induced processes. Along with some selected differential observables, we illustrate our results with a table showing inclusive cross-sections for all loop-induced hadronic scattering processes with up to three final states in the SM as well as for some relevant 2 → 4 processes. Many of these are computed here for the first time.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/bee23982e272ac9b9272611428a000ae9ceffc27
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In Nuclear and High Energy Physics
- Atlas Collaboration
- Cms Collaboration
- Gudrun Heinrich
- Fabio Maltoni
- M. Schönherr
- Stefan Dittmaier
- Ansgar Denner
- S. Höche
Citations in the corpus
- Les Houches 2017: Physics at TeV Colliders Standard Model Working Group Report (2017, methodology): “MadGraph5_aMC@NLO MadGraph5_aMC@NLO17 [88] is a single framework automating the computation of both LO (tree-level and loop-induced [502]) and NLO accuracy (differential) cross sections, including their matching to parton shower programs via the MC@NLO method [503].”
- Electroweak radiative corrections for collider physics (2019, background): “MadGraph5 aMC@NLO also offers an automated implementation of cross-section computation and event generation for loop-induced processes [354].”
- Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies (2016, methodology): “Higgs pair production in the gluon-fusion channel is simulated at LO thorugh MadGraph5_aMC@NLO [134, 211] by using the recently developed functionalities for loop-induced processes [221].”
- Higgs Physics at the HL-LHC and HE-LHC (2019, methodology): “The pp ! hh ! bb̄ signal is simulated at leading order using MADGRAPH5_AMC@NLO [79, 360] using the NNPDF2.”
- Probing top quark neutral couplings in the Standard Model Effective Field Theory at NLO in QCD (2016, methodology): “Our computation is performed within the MG5 aMC framework [20], where all the elements entering the NLO computations are available automatically starting from the SMEFT Lagrangian [31–36].”
- The automation of next-to-leading order electroweak calculations (2018, background): “{44] had been obtained with preliminary and still-private versions. Conversely, we stress that EW-loop-induced processes could already be automatically generated by MG5 aMC, owing to the work of ref. [45]. This paper is organised as follows. In sect.2we lay out the scope of our work, discuss the str”