An update on the two singlet dark matter model
Abstract We revisit the two real singlet extension of the Standard Model with a Z 2 × Z 2 ′ $$ {Z}_2\times {Z}_2^{\prime } $$ symmetry. One of the singlet scalars S 2, by virtue of an unbroken Z 2 ′ $$ {Z}_2^{\prime } $$ symmetry, plays the role of a stable dark matter candidate. The other scalar S...
| 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)104 |
| _version_ | 1818407409760075776 |
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| author | Tanushree Basak Baradhwaj Coleppa Kousik Loho |
| author_facet | Tanushree Basak Baradhwaj Coleppa Kousik Loho |
| author_sort | Tanushree Basak |
| collection | DOAJ |
| description | Abstract We revisit the two real singlet extension of the Standard Model with a Z 2 × Z 2 ′ $$ {Z}_2\times {Z}_2^{\prime } $$ symmetry. One of the singlet scalars S 2, by virtue of an unbroken Z 2 ′ $$ {Z}_2^{\prime } $$ symmetry, plays the role of a stable dark matter candidate. The other scalar S 1, with spontaneously broken Z 2-symmetry, mixes with the SM Higgs boson and acts as the scalar mediator. We analyze the model by putting in the entire set of theoretical and recent experimental constraints. The latest bounds from direct detection Xenon1T experiment severely restricts the allowed region of parameter space of couplings. To ensure the dark matter satisfies the relic abundance criterion, we rely on the Breit-Wigner enhanced annihilation cross-section. Further, we study the viability of explaining the observed gamma-ray excess in the galactic center in this model with a dark matter of mass in the ∼ 36 − 51 GeV window and present our conclusions. |
| first_indexed | 2024-12-14T09:27:23Z |
| format | Article |
| id | doaj.art-370c9700af054c379a5584d44d193e3a |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-14T09:27:23Z |
| publishDate | 2021-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-370c9700af054c379a5584d44d193e3a2022-12-21T23:08:09ZengSpringerOpenJournal of High Energy Physics1029-84792021-06-012021612110.1007/JHEP06(2021)104An update on the two singlet dark matter modelTanushree Basak0Baradhwaj Coleppa1Kousik Loho2Department of Physics, IISHLS, Indus UniversityIndian Institute of Technology GandhinagarIndian Institute of Technology GandhinagarAbstract We revisit the two real singlet extension of the Standard Model with a Z 2 × Z 2 ′ $$ {Z}_2\times {Z}_2^{\prime } $$ symmetry. One of the singlet scalars S 2, by virtue of an unbroken Z 2 ′ $$ {Z}_2^{\prime } $$ symmetry, plays the role of a stable dark matter candidate. The other scalar S 1, with spontaneously broken Z 2-symmetry, mixes with the SM Higgs boson and acts as the scalar mediator. We analyze the model by putting in the entire set of theoretical and recent experimental constraints. The latest bounds from direct detection Xenon1T experiment severely restricts the allowed region of parameter space of couplings. To ensure the dark matter satisfies the relic abundance criterion, we rely on the Breit-Wigner enhanced annihilation cross-section. Further, we study the viability of explaining the observed gamma-ray excess in the galactic center in this model with a dark matter of mass in the ∼ 36 − 51 GeV window and present our conclusions.https://doi.org/10.1007/JHEP06(2021)104Beyond Standard ModelCosmology of Theories beyond the SM |
| spellingShingle | Tanushree Basak Baradhwaj Coleppa Kousik Loho An update on the two singlet dark matter model Journal of High Energy Physics Beyond Standard Model Cosmology of Theories beyond the SM |
| title | An update on the two singlet dark matter model |
| title_full | An update on the two singlet dark matter model |
| title_fullStr | An update on the two singlet dark matter model |
| title_full_unstemmed | An update on the two singlet dark matter model |
| title_short | An update on the two singlet dark matter model |
| title_sort | update on the two singlet dark matter model |
| topic | Beyond Standard Model Cosmology of Theories beyond the SM |
| url | https://doi.org/10.1007/JHEP06(2021)104 |
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