Cornering pseudoscalar-mediated dark matter with the LHC and cosmology
Abstract Models in which dark matter particles communicate with the visible sector through a pseudoscalar mediator are well-motivated both from a theoretical and from a phenomenological standpoint. With direct detection bounds being typically subleading in such scenarios, the main constraints stem e...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-07-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP07(2017)080 |
| _version_ | 1819077685981216768 |
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| author | Shankha Banerjee Daniele Barducci Geneviève Bélanger Benjamin Fuks Andreas Goudelis Bryan Zaldivar |
| author_facet | Shankha Banerjee Daniele Barducci Geneviève Bélanger Benjamin Fuks Andreas Goudelis Bryan Zaldivar |
| author_sort | Shankha Banerjee |
| collection | DOAJ |
| description | Abstract Models in which dark matter particles communicate with the visible sector through a pseudoscalar mediator are well-motivated both from a theoretical and from a phenomenological standpoint. With direct detection bounds being typically subleading in such scenarios, the main constraints stem either from collider searches for dark matter, or from indirect detection experiments. However, LHC searches for the mediator particles themselves can not only compete with — or even supersede — the reach of direct collider dark matter probes, but they can also test scenarios in which traditional monojet searches become irrelevant, especially when the mediator cannot decay on-shell into dark matter particles or its decay is suppressed. In this work we perform a detailed analysis of a pseudoscalar-mediated dark matter simplified model, taking into account a large set of collider constraints and concentrating on the parameter space regions favoured by cos-mological and astrophysical data. We find that mediator masses above 100-200 GeV are essentially excluded by LHC searches in the case of large couplings to the top quark, while forthcoming collider and astrophysical measurements will further constrain the available parameter space. |
| first_indexed | 2024-12-21T19:01:08Z |
| format | Article |
| id | doaj.art-ee8bedc4a90e4699b076368162b7b6f7 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-21T19:01:08Z |
| publishDate | 2017-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-ee8bedc4a90e4699b076368162b7b6f72022-12-21T18:53:29ZengSpringerOpenJournal of High Energy Physics1029-84792017-07-012017713510.1007/JHEP07(2017)080Cornering pseudoscalar-mediated dark matter with the LHC and cosmologyShankha Banerjee0Daniele Barducci1Geneviève Bélanger2Benjamin Fuks3Andreas Goudelis4Bryan Zaldivar5LAPTh, Université Savoie Mont Blanc, CNRSSISSA and INFN — Sezione di TriesteLAPTh, Université Savoie Mont Blanc, CNRSLPTHE, Sorbonne Universités, UPMCLPTHE, Sorbonne Universités, UPMCLAPTh, Université Savoie Mont Blanc, CNRSAbstract Models in which dark matter particles communicate with the visible sector through a pseudoscalar mediator are well-motivated both from a theoretical and from a phenomenological standpoint. With direct detection bounds being typically subleading in such scenarios, the main constraints stem either from collider searches for dark matter, or from indirect detection experiments. However, LHC searches for the mediator particles themselves can not only compete with — or even supersede — the reach of direct collider dark matter probes, but they can also test scenarios in which traditional monojet searches become irrelevant, especially when the mediator cannot decay on-shell into dark matter particles or its decay is suppressed. In this work we perform a detailed analysis of a pseudoscalar-mediated dark matter simplified model, taking into account a large set of collider constraints and concentrating on the parameter space regions favoured by cos-mological and astrophysical data. We find that mediator masses above 100-200 GeV are essentially excluded by LHC searches in the case of large couplings to the top quark, while forthcoming collider and astrophysical measurements will further constrain the available parameter space.http://link.springer.com/article/10.1007/JHEP07(2017)080Beyond Standard ModelCosmology of Theories beyond the SM |
| spellingShingle | Shankha Banerjee Daniele Barducci Geneviève Bélanger Benjamin Fuks Andreas Goudelis Bryan Zaldivar Cornering pseudoscalar-mediated dark matter with the LHC and cosmology Journal of High Energy Physics Beyond Standard Model Cosmology of Theories beyond the SM |
| title | Cornering pseudoscalar-mediated dark matter with the LHC and cosmology |
| title_full | Cornering pseudoscalar-mediated dark matter with the LHC and cosmology |
| title_fullStr | Cornering pseudoscalar-mediated dark matter with the LHC and cosmology |
| title_full_unstemmed | Cornering pseudoscalar-mediated dark matter with the LHC and cosmology |
| title_short | Cornering pseudoscalar-mediated dark matter with the LHC and cosmology |
| title_sort | cornering pseudoscalar mediated dark matter with the lhc and cosmology |
| topic | Beyond Standard Model Cosmology of Theories beyond the SM |
| url | http://link.springer.com/article/10.1007/JHEP07(2017)080 |
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