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NNLO versus NLO multi-jet merging for top-pair production including electroweak corrections

In this proceedings we compare phenomenological predictions for differential distributions in top-quark pair production at the LHC. In particular we consider NNLO QCD fixed-order predictions and parton-level predictions based on NLO QCD multi-jet merging following the MEPS@NLO scheme. In both predic...

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Autores principales: Czakon, Michaa L., Gütschow, Christian, Lindert, Jonas M., Mitov, Alexander, Pagani, Davide, Papanastasiou, Andrew S., Schönherr, Marek, Tsinikos, Ioannis, Zaro, Marco
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:http://cds.cern.ch/record/2655222
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author Czakon, Michaa L.
Gütschow, Christian
Lindert, Jonas M.
Mitov, Alexander
Pagani, Davide
Papanastasiou, Andrew S.
Schönherr, Marek
Tsinikos, Ioannis
Zaro, Marco
author_facet Czakon, Michaa L.
Gütschow, Christian
Lindert, Jonas M.
Mitov, Alexander
Pagani, Davide
Papanastasiou, Andrew S.
Schönherr, Marek
Tsinikos, Ioannis
Zaro, Marco
author_sort Czakon, Michaa L.
collection CERN
description In this proceedings we compare phenomenological predictions for differential distributions in top-quark pair production at the LHC. In particular we consider NNLO QCD fixed-order predictions and parton-level predictions based on NLO QCD multi-jet merging following the MEPS@NLO scheme. In both predictions NLO electroweak (EW) corrections are incorporated in different approximations. We focus on several transverse-momentum distributions and on the top-quark invariant mass distribution, both highly relevant for the ongoing physics program at the LHC. We discuss comparisons between the different considered approximations and their advantages and disadvantages for different distributions.
id cern-2655222
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
record_format invenio
spelling cern-26552222022-07-28T07:24:48Zhttp://cds.cern.ch/record/2655222engCzakon, Michaa L.Gütschow, ChristianLindert, Jonas M.Mitov, AlexanderPagani, DavidePapanastasiou, Andrew S.Schönherr, MarekTsinikos, IoannisZaro, MarcoNNLO versus NLO multi-jet merging for top-pair production including electroweak correctionshep-exParticle Physics - Experimenthep-phParticle Physics - PhenomenologyIn this proceedings we compare phenomenological predictions for differential distributions in top-quark pair production at the LHC. In particular we consider NNLO QCD fixed-order predictions and parton-level predictions based on NLO QCD multi-jet merging following the MEPS@NLO scheme. In both predictions NLO electroweak (EW) corrections are incorporated in different approximations. We focus on several transverse-momentum distributions and on the top-quark invariant mass distribution, both highly relevant for the ongoing physics program at the LHC. We discuss comparisons between the different considered approximations and their advantages and disadvantages for different distributions.arXiv:1901.04442Cavendish-HEP-19/01IPPP/19/3NIKHEF/2019-001TUM-HEP-1182/19, TTK-19-01oai:cds.cern.ch:26552222019
spellingShingle hep-ex
Particle Physics - Experiment
hep-ph
Particle Physics - Phenomenology
Czakon, Michaa L.
Gütschow, Christian
Lindert, Jonas M.
Mitov, Alexander
Pagani, Davide
Papanastasiou, Andrew S.
Schönherr, Marek
Tsinikos, Ioannis
Zaro, Marco
NNLO versus NLO multi-jet merging for top-pair production including electroweak corrections
title NNLO versus NLO multi-jet merging for top-pair production including electroweak corrections
title_full NNLO versus NLO multi-jet merging for top-pair production including electroweak corrections
title_fullStr NNLO versus NLO multi-jet merging for top-pair production including electroweak corrections
title_full_unstemmed NNLO versus NLO multi-jet merging for top-pair production including electroweak corrections
title_short NNLO versus NLO multi-jet merging for top-pair production including electroweak corrections
title_sort nnlo versus nlo multi-jet merging for top-pair production including electroweak corrections
topic hep-ex
Particle Physics - Experiment
hep-ph
Particle Physics - Phenomenology
url http://cds.cern.ch/record/2655222
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