Sterile neutrino portal dark matter in $$\nu $$ ν THDM
Abstract In this paper, we propose the sterile neutrino portal dark matter in $$\nu $$ ν THDM. This model can naturally generate tiny neutrino mass with the neutrinophilic scalar doublet $$\Phi _{\nu }$$ Φ ν and sterile neutrinos N around TeV scale. Charged under a $$Z_2$$ Z 2 symmetry, one Dirac fe...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-05-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11609-5 |
| _version_ | 1797789671972929536 |
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| author | Ang Liu Feng-Lan Shao Zhi-Long Han Yi Jin Honglei Li |
| author_facet | Ang Liu Feng-Lan Shao Zhi-Long Han Yi Jin Honglei Li |
| author_sort | Ang Liu |
| collection | DOAJ |
| description | Abstract In this paper, we propose the sterile neutrino portal dark matter in $$\nu $$ ν THDM. This model can naturally generate tiny neutrino mass with the neutrinophilic scalar doublet $$\Phi _{\nu }$$ Φ ν and sterile neutrinos N around TeV scale. Charged under a $$Z_2$$ Z 2 symmetry, one Dirac fermion singlet $$\chi $$ χ and one scalar singlet $$\phi $$ ϕ are further introduced in the dark sector. The sterile neutrinos N are the mediators between the DM and SM. Depending on the coupling strength, the DM can be either WIMP or FIMP. For the WIMP scenario, pair annihilation of DM into NN is the key channel to satisfy various bounds, which could be tested at indirect detection experiments. For the FIMP scenario, besides the direct production of DM from freeze-in mechanism, contributions from late decay of NLOP is also important. When sterile neutrinos are heavier than the dark sector, NLOP is long-lived due to tiny mixing angle between sterile and light neutrinos. Constrains from free-streaming length, CMB, BBN and neutrino experiments are considered. |
| first_indexed | 2024-03-13T01:54:00Z |
| format | Article |
| id | doaj.art-f3393e6bb67d400fa5827891996b9c6d |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-03-13T01:54:00Z |
| publishDate | 2023-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-f3393e6bb67d400fa5827891996b9c6d2023-07-02T11:24:23ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-05-0183511810.1140/epjc/s10052-023-11609-5Sterile neutrino portal dark matter in $$\nu $$ ν THDMAng Liu0Feng-Lan Shao1Zhi-Long Han2Yi Jin3Honglei Li4School of Physics and Physical Engineering, Qufu Normal UniversitySchool of Physics and Physical Engineering, Qufu Normal UniversitySchool of Physics and Technology, University of JinanSchool of Physics and Technology, University of JinanSchool of Physics and Technology, University of JinanAbstract In this paper, we propose the sterile neutrino portal dark matter in $$\nu $$ ν THDM. This model can naturally generate tiny neutrino mass with the neutrinophilic scalar doublet $$\Phi _{\nu }$$ Φ ν and sterile neutrinos N around TeV scale. Charged under a $$Z_2$$ Z 2 symmetry, one Dirac fermion singlet $$\chi $$ χ and one scalar singlet $$\phi $$ ϕ are further introduced in the dark sector. The sterile neutrinos N are the mediators between the DM and SM. Depending on the coupling strength, the DM can be either WIMP or FIMP. For the WIMP scenario, pair annihilation of DM into NN is the key channel to satisfy various bounds, which could be tested at indirect detection experiments. For the FIMP scenario, besides the direct production of DM from freeze-in mechanism, contributions from late decay of NLOP is also important. When sterile neutrinos are heavier than the dark sector, NLOP is long-lived due to tiny mixing angle between sterile and light neutrinos. Constrains from free-streaming length, CMB, BBN and neutrino experiments are considered.https://doi.org/10.1140/epjc/s10052-023-11609-5 |
| spellingShingle | Ang Liu Feng-Lan Shao Zhi-Long Han Yi Jin Honglei Li Sterile neutrino portal dark matter in $$\nu $$ ν THDM European Physical Journal C: Particles and Fields |
| title | Sterile neutrino portal dark matter in $$\nu $$ ν THDM |
| title_full | Sterile neutrino portal dark matter in $$\nu $$ ν THDM |
| title_fullStr | Sterile neutrino portal dark matter in $$\nu $$ ν THDM |
| title_full_unstemmed | Sterile neutrino portal dark matter in $$\nu $$ ν THDM |
| title_short | Sterile neutrino portal dark matter in $$\nu $$ ν THDM |
| title_sort | sterile neutrino portal dark matter in nu ν thdm |
| url | https://doi.org/10.1140/epjc/s10052-023-11609-5 |
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