Scotogenic dark matter from gauged $B-L$
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| author | Garnica, Yadir Morales, América Vaquera-Araujo, Carlos A. |
| author_facet | Garnica, Yadir Morales, América Vaquera-Araujo, Carlos A. |
| contents | We propose a $U(1)_{B-L}$ gauge extension to the SM, in which the dark sector is stabilized through a matter parity symmetry preserved after spontaneous symmetry breaking. The fermion spectrum includes three neutral right-handed fields with $B-L$ charges $(-4,-4, 5)$, that make the model free of gauge anomalies. Two of these neutral fermion fields serve as mediators in a scotogenic mechanism for light-active Majorana neutrino masses. The corresponding neutrino mass matrix has rank 2, predicting a massless state and a lower bound for neutrinoless double beta decay. Regions in the parameter space consistent with dark matter relic abundance are accomplished by the lightest neutral mediator. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_13756 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Scotogenic dark matter from gauged $B-L$ Garnica, Yadir Morales, América Vaquera-Araujo, Carlos A. High Energy Physics - Phenomenology We propose a $U(1)_{B-L}$ gauge extension to the SM, in which the dark sector is stabilized through a matter parity symmetry preserved after spontaneous symmetry breaking. The fermion spectrum includes three neutral right-handed fields with $B-L$ charges $(-4,-4, 5)$, that make the model free of gauge anomalies. Two of these neutral fermion fields serve as mediators in a scotogenic mechanism for light-active Majorana neutrino masses. The corresponding neutrino mass matrix has rank 2, predicting a massless state and a lower bound for neutrinoless double beta decay. Regions in the parameter space consistent with dark matter relic abundance are accomplished by the lightest neutral mediator. |
| title | Scotogenic dark matter from gauged $B-L$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2411.13756 |