Collider and CMB complementarity of leptophilic dark matter with light Dirac neutrinos
Abstract We study the discovery prospects of leptophilic dark matter (DM) in future lepton colliders by considering the light neutrinos to be of Dirac type. Adopting an effective field theory (EFT) approach, we write down dimension six operators connecting the standard model (SM) fields, light Dirac...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2025)074 |
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| author | Debasish Borah Nayan Das Sahabub Jahedi Bhavya Thacker |
| author_facet | Debasish Borah Nayan Das Sahabub Jahedi Bhavya Thacker |
| author_sort | Debasish Borah |
| collection | DOAJ |
| description | Abstract We study the discovery prospects of leptophilic dark matter (DM) in future lepton colliders by considering the light neutrinos to be of Dirac type. Adopting an effective field theory (EFT) approach, we write down dimension six operators connecting the standard model (SM) fields, light Dirac neutrinos and DM. Considering DM relic to be generated via the thermal freeze-out, we check the discovery prospects at future lepton colliders via mono-photon plus missing energy searches. The right chiral parts of light Dirac neutrinos get thermalised due to their interactions with the bath as well as leptophilic DM, leading to enhanced effective relativistic degrees of freedom N eff within reach of future cosmic microwave background (CMB) experiments. The interplay of existing bounds from cosmological observations related to DM relic and N eff, direct and indirect detection of DM, astrophysics, and collider observations leave promising discovery prospects at future electron and muon colliders along with complementary signatures at future CMB experiments. |
| format | Article |
| id | doaj-art-fa502ac75f5641d0b92d5bf7b9e5531b |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-fa502ac75f5641d0b92d5bf7b9e5531b2025-02-09T12:06:54ZengSpringerOpenJournal of High Energy Physics1029-84792025-01-012025112810.1007/JHEP01(2025)074Collider and CMB complementarity of leptophilic dark matter with light Dirac neutrinosDebasish Borah0Nayan Das1Sahabub Jahedi2Bhavya Thacker3Department of Physics, Indian Institute of Technology GuwahatiDepartment of Physics, Indian Institute of Technology GuwahatiDepartment of Physics, Indian Institute of Technology GuwahatiDepartment of Physics, Indian Institute of Technology GuwahatiAbstract We study the discovery prospects of leptophilic dark matter (DM) in future lepton colliders by considering the light neutrinos to be of Dirac type. Adopting an effective field theory (EFT) approach, we write down dimension six operators connecting the standard model (SM) fields, light Dirac neutrinos and DM. Considering DM relic to be generated via the thermal freeze-out, we check the discovery prospects at future lepton colliders via mono-photon plus missing energy searches. The right chiral parts of light Dirac neutrinos get thermalised due to their interactions with the bath as well as leptophilic DM, leading to enhanced effective relativistic degrees of freedom N eff within reach of future cosmic microwave background (CMB) experiments. The interplay of existing bounds from cosmological observations related to DM relic and N eff, direct and indirect detection of DM, astrophysics, and collider observations leave promising discovery prospects at future electron and muon colliders along with complementary signatures at future CMB experiments.https://doi.org/10.1007/JHEP01(2025)074Specific BSM PhenomenologyCosmology of Theories BSMDark Matter at Colliders |
| spellingShingle | Debasish Borah Nayan Das Sahabub Jahedi Bhavya Thacker Collider and CMB complementarity of leptophilic dark matter with light Dirac neutrinos Journal of High Energy Physics Specific BSM Phenomenology Cosmology of Theories BSM Dark Matter at Colliders |
| title | Collider and CMB complementarity of leptophilic dark matter with light Dirac neutrinos |
| title_full | Collider and CMB complementarity of leptophilic dark matter with light Dirac neutrinos |
| title_fullStr | Collider and CMB complementarity of leptophilic dark matter with light Dirac neutrinos |
| title_full_unstemmed | Collider and CMB complementarity of leptophilic dark matter with light Dirac neutrinos |
| title_short | Collider and CMB complementarity of leptophilic dark matter with light Dirac neutrinos |
| title_sort | collider and cmb complementarity of leptophilic dark matter with light dirac neutrinos |
| topic | Specific BSM Phenomenology Cosmology of Theories BSM Dark Matter at Colliders |
| url | https://doi.org/10.1007/JHEP01(2025)074 |
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