Collider probes of real triplet scalar dark matter
Abstract We study discovery prospects for a real triplet extension of the Standard Model scalar sector at the Large Hadron Collider (LHC) and a possible future 100 TeV pp collider. We focus on the scenario in which the neutral triplet scalar is stable and contributes to the dark matter relic density...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2021)198 |
| _version_ | 1818970950162448384 |
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| author | Cheng-Wei Chiang Giovanna Cottin Yong Du Kaori Fuyuto Michael J. Ramsey-Musolf |
| author_facet | Cheng-Wei Chiang Giovanna Cottin Yong Du Kaori Fuyuto Michael J. Ramsey-Musolf |
| author_sort | Cheng-Wei Chiang |
| collection | DOAJ |
| description | Abstract We study discovery prospects for a real triplet extension of the Standard Model scalar sector at the Large Hadron Collider (LHC) and a possible future 100 TeV pp collider. We focus on the scenario in which the neutral triplet scalar is stable and contributes to the dark matter relic density. When produced in pp collisions, the charged triplet scalar decays to the neutral component plus a soft pion or soft lepton pair, yielding a disappearing charged track in the detector. We recast current 13 TeV LHC searches for disappearing tracks, and find that the LHC presently excludes a real triplet scalar lighter than 248 (275) GeV, for a mass splitting of 172 (160) MeV with ℒ = 36 fb −1. The reach can extend to 497 (520) GeV with the collection of 3000 fb −1. We extrapolate the 13 TeV analysis to a prospective 100 TeV pp collider, and find that a ∼ 3 TeV triplet scalar could be discoverable with ℒ = 30 ab −1, depending on the degree to which pile up effects are under control. We also investigate the dark matter candidate in our model and corresponding present and prospective constraints from dark matter direct detection. We find that currently XENON1T can exclude a real triplet dark matter lighter than ∼ 3 TeV for a Higgs portal coupling of order one or larger, and the future XENON20T will cover almost the entire dark matter viable parameter space except for vanishingly small portal coupling. |
| first_indexed | 2024-12-20T14:44:37Z |
| format | Article |
| id | doaj.art-6883e898a5d940d18ee1bd6a332d048b |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-20T14:44:37Z |
| publishDate | 2021-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-6883e898a5d940d18ee1bd6a332d048b2022-12-21T19:37:10ZengSpringerOpenJournal of High Energy Physics1029-84792021-01-012021112710.1007/JHEP01(2021)198Collider probes of real triplet scalar dark matterCheng-Wei Chiang0Giovanna Cottin1Yong Du2Kaori Fuyuto3Michael J. Ramsey-Musolf4Department of Physics, National Taiwan UniversityDepartamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo IbáñezAmherst Center for Fundamental Interactions, Department of Physics, University of MassachusettsTheoretical Division, Los Alamos National LaboratoryAmherst Center for Fundamental Interactions, Department of Physics, University of MassachusettsAbstract We study discovery prospects for a real triplet extension of the Standard Model scalar sector at the Large Hadron Collider (LHC) and a possible future 100 TeV pp collider. We focus on the scenario in which the neutral triplet scalar is stable and contributes to the dark matter relic density. When produced in pp collisions, the charged triplet scalar decays to the neutral component plus a soft pion or soft lepton pair, yielding a disappearing charged track in the detector. We recast current 13 TeV LHC searches for disappearing tracks, and find that the LHC presently excludes a real triplet scalar lighter than 248 (275) GeV, for a mass splitting of 172 (160) MeV with ℒ = 36 fb −1. The reach can extend to 497 (520) GeV with the collection of 3000 fb −1. We extrapolate the 13 TeV analysis to a prospective 100 TeV pp collider, and find that a ∼ 3 TeV triplet scalar could be discoverable with ℒ = 30 ab −1, depending on the degree to which pile up effects are under control. We also investigate the dark matter candidate in our model and corresponding present and prospective constraints from dark matter direct detection. We find that currently XENON1T can exclude a real triplet dark matter lighter than ∼ 3 TeV for a Higgs portal coupling of order one or larger, and the future XENON20T will cover almost the entire dark matter viable parameter space except for vanishingly small portal coupling.https://doi.org/10.1007/JHEP01(2021)198Beyond Standard ModelDark matterHadron-Hadron scattering (experiments) |
| spellingShingle | Cheng-Wei Chiang Giovanna Cottin Yong Du Kaori Fuyuto Michael J. Ramsey-Musolf Collider probes of real triplet scalar dark matter Journal of High Energy Physics Beyond Standard Model Dark matter Hadron-Hadron scattering (experiments) |
| title | Collider probes of real triplet scalar dark matter |
| title_full | Collider probes of real triplet scalar dark matter |
| title_fullStr | Collider probes of real triplet scalar dark matter |
| title_full_unstemmed | Collider probes of real triplet scalar dark matter |
| title_short | Collider probes of real triplet scalar dark matter |
| title_sort | collider probes of real triplet scalar dark matter |
| topic | Beyond Standard Model Dark matter Hadron-Hadron scattering (experiments) |
| url | https://doi.org/10.1007/JHEP01(2021)198 |
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