Leptonic first-row correlation and unitarity waiting for further JUNO tests
Fuente:
arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866910037471920128 |
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| author | Xing, Zhi-zhong |
| author_facet | Xing, Zhi-zhong |
| contents | We conjecture that there exists a remarkable correlation among the three elements in the first row of the $3\times 3$ lepton flavor mixing matrix $U$: $|U^{}_{e1}|^2 = 2 \left(|U^{}_{e2}|^2 + |U^{}_{e3}|^2\right)$, which holds even though $U$ is non-unitary in the canonical seesaw mechanism. This ``first-row correlation" is fully consistent with $\sin^2θ^{}_{12} = \left(1 - 2\tan^2θ^{}_{13}\right)/3$ in the unitarity limit of $U$, as supported by the latest JUNO and Daya Bay precision measurements at a confidence level close to $1σ$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_17583 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Leptonic first-row correlation and unitarity waiting for further JUNO tests Xing, Zhi-zhong High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment We conjecture that there exists a remarkable correlation among the three elements in the first row of the $3\times 3$ lepton flavor mixing matrix $U$: $|U^{}_{e1}|^2 = 2 \left(|U^{}_{e2}|^2 + |U^{}_{e3}|^2\right)$, which holds even though $U$ is non-unitary in the canonical seesaw mechanism. This ``first-row correlation" is fully consistent with $\sin^2θ^{}_{12} = \left(1 - 2\tan^2θ^{}_{13}\right)/3$ in the unitarity limit of $U$, as supported by the latest JUNO and Daya Bay precision measurements at a confidence level close to $1σ$. |
| title | Leptonic first-row correlation and unitarity waiting for further JUNO tests |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment |
| url | https://arxiv.org/abs/2510.17583 |