CERN Accelerating science

ATLAS Note
Report number ATL-PHYS-PUB-2024-002
Title Studies of matrix element correction in t\bar{t} events using MG5_aMC@NLO+Pythia8
Corporate Author(s) The ATLAS collaboration
Collaboration ATLAS Collaboration
Publication 2024
Imprint 28 Mar 2024
Number of pages mult.
Note All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PUBNOTES/ATL-PHYS-PUB-2024-002
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords Top ; Modelling ; TOP
Abstract We discuss the effect of matrix element corrections (MEC) to parton showers for t\bar{t} events usings the MG5_aMC@NLO + Pythia8 event generators. The studies are done for inclusive \ttbar production as well as for a setupusing the FxFx procedure with up to 2 additional jets in the matrix element. The predictions are additionally compared to the ATLAS default sample produced with the POWHEG-BOX and showered with Pythia8.
Scientific contact person Cerutti, F, (fabio.cerutti@cern.ch)

Corresponding record in: Inspire


 Record created 2024-03-28, last modified 2024-03-29