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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...
Autores principales: | , , , , , , , , |
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Lenguaje: | eng |
Publicado: |
2019
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/2655222 |
_version_ | 1780961155083141120 |
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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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