Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction

At the LHC the CP properties of the top-quark Yukawa interaction can be probed through Higgs production in gluon fusion or in association with top quarks. We consider the possibility for both CP-even and CP-odd couplings to the top quark to be present, and study CP-sensitive observables at next-to-l...

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Autores principales: Demartin, Federico, Maltoni, Fabio, Mawatari, Kentarou, Page, Ben, Zaro, Marco
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2014
Materias:
Regular Article - Theoretical Physics
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4370858/
https://www.ncbi.nlm.nih.gov/pubmed/25814915
http://dx.doi.org/10.1140/epjc/s10052-014-3065-2
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author Demartin, Federico
Maltoni, Fabio
Mawatari, Kentarou
Page, Ben
Zaro, Marco
author_facet Demartin, Federico
Maltoni, Fabio
Mawatari, Kentarou
Page, Ben
Zaro, Marco
author_sort Demartin, Federico
collection PubMed
description At the LHC the CP properties of the top-quark Yukawa interaction can be probed through Higgs production in gluon fusion or in association with top quarks. We consider the possibility for both CP-even and CP-odd couplings to the top quark to be present, and study CP-sensitive observables at next-to-leading order (NLO) in QCD, including parton-shower effects. We show that the inclusion of NLO corrections sizeably reduces the theoretical uncertainties, and confirm that di-jet correlations in [Formula: see text] jet production through gluon fusion and correlations of the top-quark decay products in [Formula: see text] production can provide sensitive probes of the CP nature of the Higgs interactions.
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spelling pubmed-43708582015-03-24 Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction Demartin, Federico Maltoni, Fabio Mawatari, Kentarou Page, Ben Zaro, Marco Eur Phys J C Part Fields Regular Article - Theoretical Physics At the LHC the CP properties of the top-quark Yukawa interaction can be probed through Higgs production in gluon fusion or in association with top quarks. We consider the possibility for both CP-even and CP-odd couplings to the top quark to be present, and study CP-sensitive observables at next-to-leading order (NLO) in QCD, including parton-shower effects. We show that the inclusion of NLO corrections sizeably reduces the theoretical uncertainties, and confirm that di-jet correlations in [Formula: see text] jet production through gluon fusion and correlations of the top-quark decay products in [Formula: see text] production can provide sensitive probes of the CP nature of the Higgs interactions. Springer Berlin Heidelberg 2014-09-23 2014 /pmc/articles/PMC4370858/ /pubmed/25814915 http://dx.doi.org/10.1140/epjc/s10052-014-3065-2 Text en © The Author(s) 2014 https://creativecommons.org/licenses/by/4.0/ Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3 / License Version CC BY 4.0.
spellingShingle Regular Article - Theoretical Physics
Demartin, Federico
Maltoni, Fabio
Mawatari, Kentarou
Page, Ben
Zaro, Marco
Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
title Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
title_full Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
title_fullStr Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
title_full_unstemmed Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
title_short Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
title_sort higgs characterisation at nlo in qcd: cp properties of the top-quark yukawa interaction
topic Regular Article - Theoretical Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4370858/
https://www.ncbi.nlm.nih.gov/pubmed/25814915
http://dx.doi.org/10.1140/epjc/s10052-014-3065-2
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