A $Z_4$ symmetric inverse seesaw model for neutrino masses and FIMP dark matter
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866909811223822336 |
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| author | Wang, Ziye Reyimuaji, Yakefu Yalikun, Nijiati |
| author_facet | Wang, Ziye Reyimuaji, Yakefu Yalikun, Nijiati |
| contents | A theoretical framework based on a spontaneously broken $Z_4$ symmetry is proposed to simultaneously explain neutrino mass generation via the inverse seesaw mechanism and dark matter (DM) production through a freeze-in scenario. This work extends the standard model with right-handed neutrinos $N_i$, additional fermions $χ_i$, and a complex scalar $S$. An unbroken $Z_2$ subgroup ensures the stability of the DM candidate, whose relic abundance is dominantly produced via decay and scattering processes involving heavy singlet fermions. Phenomenological analyses show that this relatively minimal construction accommodates the observed neutrino oscillation parameters, consistent with the latest global fit data. Furthermore, the model successfully reproduces the observed DM relic density within the parameter space relevant to neutrino phenomenology, establishing a connection between neutrino properties and DM production. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_15672 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A $Z_4$ symmetric inverse seesaw model for neutrino masses and FIMP dark matter Wang, Ziye Reyimuaji, Yakefu Yalikun, Nijiati High Energy Physics - Phenomenology A theoretical framework based on a spontaneously broken $Z_4$ symmetry is proposed to simultaneously explain neutrino mass generation via the inverse seesaw mechanism and dark matter (DM) production through a freeze-in scenario. This work extends the standard model with right-handed neutrinos $N_i$, additional fermions $χ_i$, and a complex scalar $S$. An unbroken $Z_2$ subgroup ensures the stability of the DM candidate, whose relic abundance is dominantly produced via decay and scattering processes involving heavy singlet fermions. Phenomenological analyses show that this relatively minimal construction accommodates the observed neutrino oscillation parameters, consistent with the latest global fit data. Furthermore, the model successfully reproduces the observed DM relic density within the parameter space relevant to neutrino phenomenology, establishing a connection between neutrino properties and DM production. |
| title | A $Z_4$ symmetric inverse seesaw model for neutrino masses and FIMP dark matter |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2412.15672 |