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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2512.02101 |
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| _version_ | 1866910230877569024 |
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| author | de Giorgi, Arturo Pasari, Dhruv Turner, Jessica |
| author_facet | de Giorgi, Arturo Pasari, Dhruv Turner, Jessica |
| contents | This paper provides a comprehensive overview of neutrino masses and mixing in Large Extra Dimension scenarios, focusing on the phenomenological impact of a five-dimensional (5D) bulk fermion. In a flat extra dimension compactified on an $S^1/\mathbb{Z}_2$ orbifold, this fermion manifests as a Kaluza-Klein tower of right-handed neutrinos in the 4D effective theory. We systematically investigate four distinct scenarios for mass generation, considering both Dirac and Majorana mass terms originating from either the bulk or the 3-brane. For each case, we analyse the consequences for neutrino oscillations in a vacuum and in matter, deriving the resulting mass spectra and mixing patterns. By comparing these theoretical predictions with experimental data, we explore the constraints on the large extra dimensions' parameters. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_02101 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Do neutrinos dream in 5D? Towards a comprehensive extra-dimensional neutrino phenomenology de Giorgi, Arturo Pasari, Dhruv Turner, Jessica High Energy Physics - Phenomenology This paper provides a comprehensive overview of neutrino masses and mixing in Large Extra Dimension scenarios, focusing on the phenomenological impact of a five-dimensional (5D) bulk fermion. In a flat extra dimension compactified on an $S^1/\mathbb{Z}_2$ orbifold, this fermion manifests as a Kaluza-Klein tower of right-handed neutrinos in the 4D effective theory. We systematically investigate four distinct scenarios for mass generation, considering both Dirac and Majorana mass terms originating from either the bulk or the 3-brane. For each case, we analyse the consequences for neutrino oscillations in a vacuum and in matter, deriving the resulting mass spectra and mixing patterns. By comparing these theoretical predictions with experimental data, we explore the constraints on the large extra dimensions' parameters. |
| title | Do neutrinos dream in 5D? Towards a comprehensive extra-dimensional neutrino phenomenology |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2512.02101 |