Inverted mass hierarchy from a flavored axion-neutrino model
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866912456926822400 |
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| author | Lei, Zhen-Yu Cui, Jian-Wei |
| author_facet | Lei, Zhen-Yu Cui, Jian-Wei |
| contents | Combining the KSVZ axion model and the type-I seesaw mechanism, we construct a minimal flavored axion model that can affect the neutrino mass matrix. This minimal model requires a flavor dependent PQ charge assignment and two additional standard model (SM) singlet scalars which generate specific patterns of lepton mass matrices, yielding a particular texture of Majorana neutrino mass matrix. Combined with fact that $θ_{13}$ is much smaller than the other mixing angles, this texture predicts an Inverted Hierarchy of neutrino masses with $17\lesssim m_1/m_3\lesssim 44$, and a hierarchy between the two VEVs of SM-singlet scalars. We also examine the couplings between the axion and the leptons in this model. Especially, the axion-neutrino couplings have the potential effect on neutrino oscillation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_05903 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Inverted mass hierarchy from a flavored axion-neutrino model Lei, Zhen-Yu Cui, Jian-Wei High Energy Physics - Phenomenology Combining the KSVZ axion model and the type-I seesaw mechanism, we construct a minimal flavored axion model that can affect the neutrino mass matrix. This minimal model requires a flavor dependent PQ charge assignment and two additional standard model (SM) singlet scalars which generate specific patterns of lepton mass matrices, yielding a particular texture of Majorana neutrino mass matrix. Combined with fact that $θ_{13}$ is much smaller than the other mixing angles, this texture predicts an Inverted Hierarchy of neutrino masses with $17\lesssim m_1/m_3\lesssim 44$, and a hierarchy between the two VEVs of SM-singlet scalars. We also examine the couplings between the axion and the leptons in this model. Especially, the axion-neutrino couplings have the potential effect on neutrino oscillation. |
| title | Inverted mass hierarchy from a flavored axion-neutrino model |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2408.05903 |