Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactions
Abstract We compute the effects due to the virtual exchange (or the soft emission) of a scalar particle with generic couplings to the top quark in t t ¯ $$ t\overline{t} $$ pair production at the LHC. We apply the results to two cases of interest, extending and completing previous studies. First, we...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-09-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP09(2024)098 |
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| _version_ | 1846137323007246336 |
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| author | Fabio Maltoni Davide Pagani Simone Tentori |
| author_facet | Fabio Maltoni Davide Pagani Simone Tentori |
| author_sort | Fabio Maltoni |
| collection | DOAJ |
| description | Abstract We compute the effects due to the virtual exchange (or the soft emission) of a scalar particle with generic couplings to the top quark in t t ¯ $$ t\overline{t} $$ pair production at the LHC. We apply the results to two cases of interest, extending and completing previous studies. First, we consider the indirect search for light (m S < 2m t ) top-philic scalars with CP-even and/or CP-odd interactions. Second, we investigate how to set constraints on anomalous Yukawa couplings of the Higgs boson to the top quark. Our results show that the current precision of experimental data together with the accuracy of the SM predictions make such indirect determinations a powerful probe for new physics. |
| format | Article |
| id | doaj-art-00887aed4db14237b15709e3a2e48e30 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-00887aed4db14237b15709e3a2e48e302024-12-08T12:16:20ZengSpringerOpenJournal of High Energy Physics1029-84792024-09-012024914810.1007/JHEP09(2024)098Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactionsFabio Maltoni0Davide Pagani1Simone Tentori2Centre for Cosmology, Particle Physics and Phenomenology (CP3), Université Catholique de LouvainINFN, Sezione di BolognaCentre for Cosmology, Particle Physics and Phenomenology (CP3), Université Catholique de LouvainAbstract We compute the effects due to the virtual exchange (or the soft emission) of a scalar particle with generic couplings to the top quark in t t ¯ $$ t\overline{t} $$ pair production at the LHC. We apply the results to two cases of interest, extending and completing previous studies. First, we consider the indirect search for light (m S < 2m t ) top-philic scalars with CP-even and/or CP-odd interactions. Second, we investigate how to set constraints on anomalous Yukawa couplings of the Higgs boson to the top quark. Our results show that the current precision of experimental data together with the accuracy of the SM predictions make such indirect determinations a powerful probe for new physics.https://doi.org/10.1007/JHEP09(2024)098Anomalous Higgs CouplingsHiggs PropertiesHigher Order Electroweak CalculationsNew Light Particles |
| spellingShingle | Fabio Maltoni Davide Pagani Simone Tentori Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactions Journal of High Energy Physics Anomalous Higgs Couplings Higgs Properties Higher Order Electroweak Calculations New Light Particles |
| title | Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactions |
| title_full | Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactions |
| title_fullStr | Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactions |
| title_full_unstemmed | Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactions |
| title_short | Top-quark pair production as a probe of light top-philic scalars and anomalous Higgs interactions |
| title_sort | top quark pair production as a probe of light top philic scalars and anomalous higgs interactions |
| topic | Anomalous Higgs Couplings Higgs Properties Higher Order Electroweak Calculations New Light Particles |
| url | https://doi.org/10.1007/JHEP09(2024)098 |
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