On the coupling of axion-like particles to the top quark
Abstract In this paper we explore the coupling of a light axion-like particle (ALP) to top quarks. We use high-energy LHC probes, and examine both the direct probe to this coupling in associated production of a top-pair with an ALP, and the indirect probe through loop-induced gluon fusion to an ALP...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-09-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP09(2023)063 |
| _version_ | 1797371221008973824 |
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| author | Fabian Esser Maeve Madigan Veronica Sanz Maria Ubiali |
| author_facet | Fabian Esser Maeve Madigan Veronica Sanz Maria Ubiali |
| author_sort | Fabian Esser |
| collection | DOAJ |
| description | Abstract In this paper we explore the coupling of a light axion-like particle (ALP) to top quarks. We use high-energy LHC probes, and examine both the direct probe to this coupling in associated production of a top-pair with an ALP, and the indirect probe through loop-induced gluon fusion to an ALP leading to top pairs. Using the latest LHC Run II data, we provide the best limit on this coupling. We also compare these limits with those obtained from loop-induced couplings in diboson final states, finding that the t t ¯ $$ t\overline{t} $$ +MET channel is the best current handle on this coupling. |
| first_indexed | 2024-03-08T18:16:46Z |
| format | Article |
| id | doaj.art-8f76eddab6054480800fa3c73a316ae1 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-08T18:16:46Z |
| publishDate | 2023-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-8f76eddab6054480800fa3c73a316ae12023-12-31T12:07:53ZengSpringerOpenJournal of High Energy Physics1029-84792023-09-012023914010.1007/JHEP09(2023)063On the coupling of axion-like particles to the top quarkFabian Esser0Maeve Madigan1Veronica Sanz2Maria Ubiali3Instituto de Física Corpuscular (IFIC), Universidad de Valencia-CSICInstitut für Theoretische Physik, Universität HeidelbergInstituto de Física Corpuscular (IFIC), Universidad de Valencia-CSICDAMTP, University of CambridgeAbstract In this paper we explore the coupling of a light axion-like particle (ALP) to top quarks. We use high-energy LHC probes, and examine both the direct probe to this coupling in associated production of a top-pair with an ALP, and the indirect probe through loop-induced gluon fusion to an ALP leading to top pairs. Using the latest LHC Run II data, we provide the best limit on this coupling. We also compare these limits with those obtained from loop-induced couplings in diboson final states, finding that the t t ¯ $$ t\overline{t} $$ +MET channel is the best current handle on this coupling.https://doi.org/10.1007/JHEP09(2023)063Axions and ALPsTop QuarkNew Light Particles |
| spellingShingle | Fabian Esser Maeve Madigan Veronica Sanz Maria Ubiali On the coupling of axion-like particles to the top quark Journal of High Energy Physics Axions and ALPs Top Quark New Light Particles |
| title | On the coupling of axion-like particles to the top quark |
| title_full | On the coupling of axion-like particles to the top quark |
| title_fullStr | On the coupling of axion-like particles to the top quark |
| title_full_unstemmed | On the coupling of axion-like particles to the top quark |
| title_short | On the coupling of axion-like particles to the top quark |
| title_sort | on the coupling of axion like particles to the top quark |
| topic | Axions and ALPs Top Quark New Light Particles |
| url | https://doi.org/10.1007/JHEP09(2023)063 |
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