Exploring neutrino masses, $(g-2)_{μ, e}$ in type I+II seesaw in ${L^{}_e-L^{}_α}$ gauge extended model
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2021
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| _version_ | 1866914962917556224 |
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| author | Panda, Papia Mishra, Priya Behera, Mitesh Kumar Singirala, Shivaramakrishna Mohanta, Rukmani |
| author_facet | Panda, Papia Mishra, Priya Behera, Mitesh Kumar Singirala, Shivaramakrishna Mohanta, Rukmani |
| contents | This paper aims to explore the implications of $U(1)_{L_e-L_α}$ gauge symmetries, where $α=τ, μ$, in the neutrino sector through the type-(I+II) seesaw mechanisms. To achieve such a hybrid framework, we include a scalar triplet and three right-handed neutrinos. The model can successfully account for the active neutrino masses, mixing angles, mass squared differences, and the CP-violating phase within the $3 σ$ bounds of NuFit v5.2 neutrino oscillation data. The presence of new gauge boson at the MeV scale provides an explanation for the muon and electron $(g-2)$ within the confines of their experimental limits. Furthermore, we scrutinize the proposed models in the context of upcoming long-baseline neutrino experiments such as DUNE, P2SO, T2HK, and T2HKK. The findings reveal that P2SO and T2HK have the ability to probe both the models in their $5 σ$ allowed oscillation parameter region, whereas DUNE and T2HKK can conclusively test only model with $U(1)_{L_e-L_μ}$- symmetry within their $5 σ$ parameter space if the true values of the oscillation parameters remain consistent with NuFit v5.2. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2108_04066 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Exploring neutrino masses, $(g-2)_{μ, e}$ in type I+II seesaw in ${L^{}_e-L^{}_α}$ gauge extended model Panda, Papia Mishra, Priya Behera, Mitesh Kumar Singirala, Shivaramakrishna Mohanta, Rukmani High Energy Physics - Phenomenology This paper aims to explore the implications of $U(1)_{L_e-L_α}$ gauge symmetries, where $α=τ, μ$, in the neutrino sector through the type-(I+II) seesaw mechanisms. To achieve such a hybrid framework, we include a scalar triplet and three right-handed neutrinos. The model can successfully account for the active neutrino masses, mixing angles, mass squared differences, and the CP-violating phase within the $3 σ$ bounds of NuFit v5.2 neutrino oscillation data. The presence of new gauge boson at the MeV scale provides an explanation for the muon and electron $(g-2)$ within the confines of their experimental limits. Furthermore, we scrutinize the proposed models in the context of upcoming long-baseline neutrino experiments such as DUNE, P2SO, T2HK, and T2HKK. The findings reveal that P2SO and T2HK have the ability to probe both the models in their $5 σ$ allowed oscillation parameter region, whereas DUNE and T2HKK can conclusively test only model with $U(1)_{L_e-L_μ}$- symmetry within their $5 σ$ parameter space if the true values of the oscillation parameters remain consistent with NuFit v5.2. |
| title | Exploring neutrino masses, $(g-2)_{μ, e}$ in type I+II seesaw in ${L^{}_e-L^{}_α}$ gauge extended model |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2108.04066 |