New discovery modes for a light charged Higgs boson at the LHC
Abstract At the Large Hadron Collider (LHC), both the ATLAS and CMS Collaborations have been searching for light charged Higgs bosons via top (anti)quark production and decays channels, like pp → t t ¯ $$ \overline{t} $$ with one top (anti)quark decaying into a charged Higgs boson and a b (anti)quar...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-10-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP10(2021)073 |
| _version_ | 1818355258909261824 |
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| author | A. Arhrib R. Benbrik M. Krab B. Manaut S. Moretti Yan Wang Qi-Shu Yan |
| author_facet | A. Arhrib R. Benbrik M. Krab B. Manaut S. Moretti Yan Wang Qi-Shu Yan |
| author_sort | A. Arhrib |
| collection | DOAJ |
| description | Abstract At the Large Hadron Collider (LHC), both the ATLAS and CMS Collaborations have been searching for light charged Higgs bosons via top (anti)quark production and decays channels, like pp → t t ¯ $$ \overline{t} $$ with one top (anti)quark decaying into a charged Higgs boson and a b (anti)quark, when the decay is kinematically open (i.e., when m H ± $$ {m}_{H^{\pm }} $$ ≲ m t ). In this paper, we propose new searches at the LHC involving light charged Higgs bosons via their pair production channels like pp → H ± h/A and pp → H + H − in the 2-Higgs Doublet Model (2HDM) Type-I and -X scenarios. By focusing on the case where the heavy H state plays the role of the Standard Model (SM)-like Higgs boson with a mass near 125 GeV, we study the aforementioned Higgs boson pair production channels and investigate their bosonic decays, such as H ± → W ± h and/or H ± → W ± A. We demonstrate that for a light charged Higgs boson state, with m H ± $$ {m}_{H^{\pm }} $$ ≲ m t , at the LHC, such di-Higgs production and decay channels can give rise to signatures with event rates much larger than those emerging from pp → t t ¯ $$ \overline{t} $$ → t b ¯ $$ \overline{b} $$ H − + c.c. We specifically study h/A → b b ¯ $$ \overline{b} $$ and τ + τ − decays. We, therefore, claim that the discussed combination of new production and decay modes can result in an alternative discovery channel for charged Higgs bosons lighter than the top (anti)quark at the LHC within the above two 2HDM Types. Finally, in order to motivate experimentalists in ATLAS and CMS to search for such signatures, we propose 16 Benchmark Points (BPs) which are compatible with both theoretical and experimental constraints. |
| first_indexed | 2024-12-13T19:38:28Z |
| format | Article |
| id | doaj.art-721bd0cefa3d4491993d930948923586 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-13T19:38:28Z |
| publishDate | 2021-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-721bd0cefa3d4491993d9309489235862022-12-21T23:33:44ZengSpringerOpenJournal of High Energy Physics1029-84792021-10-0120211012110.1007/JHEP10(2021)073New discovery modes for a light charged Higgs boson at the LHCA. Arhrib0R. Benbrik1M. Krab2B. Manaut3S. Moretti4Yan Wang5Qi-Shu Yan6Faculty of Sciences and techniques, Abdelmalek Essaadi UniversityFaculté Polydisciplinaire de Safi, Laboratoire de Physique Fondamentale et Appliquée SafiResearch Team in Theoretical Physics and Materials (RTTPM), Polydisciplinary Faculty, Sultan Moulay Slimane UniversityResearch Team in Theoretical Physics and Materials (RTTPM), Polydisciplinary Faculty, Sultan Moulay Slimane UniversitySchool of Physics and Astronomy, University of SouthamptonCollege of Physics and Electronic Information, Inner Mongolia Normal UniversityCenter for Future High Energy Physics, Chinese Academy of SciencesAbstract At the Large Hadron Collider (LHC), both the ATLAS and CMS Collaborations have been searching for light charged Higgs bosons via top (anti)quark production and decays channels, like pp → t t ¯ $$ \overline{t} $$ with one top (anti)quark decaying into a charged Higgs boson and a b (anti)quark, when the decay is kinematically open (i.e., when m H ± $$ {m}_{H^{\pm }} $$ ≲ m t ). In this paper, we propose new searches at the LHC involving light charged Higgs bosons via their pair production channels like pp → H ± h/A and pp → H + H − in the 2-Higgs Doublet Model (2HDM) Type-I and -X scenarios. By focusing on the case where the heavy H state plays the role of the Standard Model (SM)-like Higgs boson with a mass near 125 GeV, we study the aforementioned Higgs boson pair production channels and investigate their bosonic decays, such as H ± → W ± h and/or H ± → W ± A. We demonstrate that for a light charged Higgs boson state, with m H ± $$ {m}_{H^{\pm }} $$ ≲ m t , at the LHC, such di-Higgs production and decay channels can give rise to signatures with event rates much larger than those emerging from pp → t t ¯ $$ \overline{t} $$ → t b ¯ $$ \overline{b} $$ H − + c.c. We specifically study h/A → b b ¯ $$ \overline{b} $$ and τ + τ − decays. We, therefore, claim that the discussed combination of new production and decay modes can result in an alternative discovery channel for charged Higgs bosons lighter than the top (anti)quark at the LHC within the above two 2HDM Types. Finally, in order to motivate experimentalists in ATLAS and CMS to search for such signatures, we propose 16 Benchmark Points (BPs) which are compatible with both theoretical and experimental constraints.https://doi.org/10.1007/JHEP10(2021)073Beyond Standard ModelHiggs Physics |
| spellingShingle | A. Arhrib R. Benbrik M. Krab B. Manaut S. Moretti Yan Wang Qi-Shu Yan New discovery modes for a light charged Higgs boson at the LHC Journal of High Energy Physics Beyond Standard Model Higgs Physics |
| title | New discovery modes for a light charged Higgs boson at the LHC |
| title_full | New discovery modes for a light charged Higgs boson at the LHC |
| title_fullStr | New discovery modes for a light charged Higgs boson at the LHC |
| title_full_unstemmed | New discovery modes for a light charged Higgs boson at the LHC |
| title_short | New discovery modes for a light charged Higgs boson at the LHC |
| title_sort | new discovery modes for a light charged higgs boson at the lhc |
| topic | Beyond Standard Model Higgs Physics |
| url | https://doi.org/10.1007/JHEP10(2021)073 |
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