Dynamical scoto-seesaw mechanism with gauged $B-L$
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866929405159276544 |
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| author | Leite, Julio Sadhukhan, Soumya Valle, José W. F. |
| author_facet | Leite, Julio Sadhukhan, Soumya Valle, José W. F. |
| contents | We propose a dynamical scoto-seesaw mechanism using a gauged $B-L$ symmetry. Dark matter is reconciled with neutrino mass generation, in such a way that the atmospheric scale arises \textit{a la seesaw}, while the solar scale is \textit{scotogenic}, arising radiatively from the exchange of ``dark'' states. This way we ``explain'' the solar-to-atmospheric scale ratio. The TeV-scale seesaw mediator and the two dark fermions carry different $B-L$ charges. Dark matter stability follows from the residual matter parity that survives $B-L$ breaking. Besides having collider tests, the model implies sizeable charged lepton flavour violating (cLFV) phenomena, including Goldstone boson emission processes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_04840 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Dynamical scoto-seesaw mechanism with gauged $B-L$ Leite, Julio Sadhukhan, Soumya Valle, José W. F. High Energy Physics - Phenomenology We propose a dynamical scoto-seesaw mechanism using a gauged $B-L$ symmetry. Dark matter is reconciled with neutrino mass generation, in such a way that the atmospheric scale arises \textit{a la seesaw}, while the solar scale is \textit{scotogenic}, arising radiatively from the exchange of ``dark'' states. This way we ``explain'' the solar-to-atmospheric scale ratio. The TeV-scale seesaw mediator and the two dark fermions carry different $B-L$ charges. Dark matter stability follows from the residual matter parity that survives $B-L$ breaking. Besides having collider tests, the model implies sizeable charged lepton flavour violating (cLFV) phenomena, including Goldstone boson emission processes. |
| title | Dynamical scoto-seesaw mechanism with gauged $B-L$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2307.04840 |