Bound states of WIMP dark matter in Higgs-portal models. Part I. Cross-sections and transition rates
Abstract We investigate the role of the Higgs doublet in the thermal decoupling of multi-TeV dark matter coupled to the Weak interactions of the Standard Model and the Higgs. The Higgs doublet can mediate a long-range force that affects the annihilation processes and binds dark matter into bound sta...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-06-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP06(2021)124 |
| _version_ | 1818657896390459392 |
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| author | Ruben Oncala Kalliopi Petraki |
| author_facet | Ruben Oncala Kalliopi Petraki |
| author_sort | Ruben Oncala |
| collection | DOAJ |
| description | Abstract We investigate the role of the Higgs doublet in the thermal decoupling of multi-TeV dark matter coupled to the Weak interactions of the Standard Model and the Higgs. The Higgs doublet can mediate a long-range force that affects the annihilation processes and binds dark matter into bound states. More importantly, the emission of a Higgs doublet by a pair of dark matter particles can give rise to extremely rapid monopole bound-state formation processes and bound-to-bound transitions. We compute these effects in the unbroken electroweak phase. To this end, we consider the simplest renormalisable fermionic model, consisting of a singlet and a doublet under SU L (2) that are stabilised by a ℤ2 symmetry, in the regime where the two multiplets coannihilate. In a companion paper, we use the results to show that the formation of metastable bound states via Higgs-doublet emission and their decay decrease the relic density very significantly. |
| first_indexed | 2024-12-17T03:48:46Z |
| format | Article |
| id | doaj.art-9a2b8b55551b4faba3c2220a16cbbd39 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-17T03:48:46Z |
| publishDate | 2021-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-9a2b8b55551b4faba3c2220a16cbbd392022-12-21T22:04:50ZengSpringerOpenJournal of High Energy Physics1029-84792021-06-012021616210.1007/JHEP06(2021)124Bound states of WIMP dark matter in Higgs-portal models. Part I. Cross-sections and transition ratesRuben Oncala0Kalliopi Petraki1Sorbonne Université, CNRS, Laboratoire de Physique Théorique et Hautes Énergies, LPTHESorbonne Université, CNRS, Laboratoire de Physique Théorique et Hautes Énergies, LPTHEAbstract We investigate the role of the Higgs doublet in the thermal decoupling of multi-TeV dark matter coupled to the Weak interactions of the Standard Model and the Higgs. The Higgs doublet can mediate a long-range force that affects the annihilation processes and binds dark matter into bound states. More importantly, the emission of a Higgs doublet by a pair of dark matter particles can give rise to extremely rapid monopole bound-state formation processes and bound-to-bound transitions. We compute these effects in the unbroken electroweak phase. To this end, we consider the simplest renormalisable fermionic model, consisting of a singlet and a doublet under SU L (2) that are stabilised by a ℤ2 symmetry, in the regime where the two multiplets coannihilate. In a companion paper, we use the results to show that the formation of metastable bound states via Higgs-doublet emission and their decay decrease the relic density very significantly.https://doi.org/10.1007/JHEP06(2021)124Beyond Standard ModelCosmology of Theories beyond the SM |
| spellingShingle | Ruben Oncala Kalliopi Petraki Bound states of WIMP dark matter in Higgs-portal models. Part I. Cross-sections and transition rates Journal of High Energy Physics Beyond Standard Model Cosmology of Theories beyond the SM |
| title | Bound states of WIMP dark matter in Higgs-portal models. Part I. Cross-sections and transition rates |
| title_full | Bound states of WIMP dark matter in Higgs-portal models. Part I. Cross-sections and transition rates |
| title_fullStr | Bound states of WIMP dark matter in Higgs-portal models. Part I. Cross-sections and transition rates |
| title_full_unstemmed | Bound states of WIMP dark matter in Higgs-portal models. Part I. Cross-sections and transition rates |
| title_short | Bound states of WIMP dark matter in Higgs-portal models. Part I. Cross-sections and transition rates |
| title_sort | bound states of wimp dark matter in higgs portal models part i cross sections and transition rates |
| topic | Beyond Standard Model Cosmology of Theories beyond the SM |
| url | https://doi.org/10.1007/JHEP06(2021)124 |
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