Update on non-unitary mixing in the recent NO$ν$A and T2K data
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| Format: | Preprint |
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2024
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| _version_ | 1866915939715383296 |
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| author | Yu, Xin Yue Guan, Zishen Rahaman, Ushak Ilic, Nikolina |
| author_facet | Yu, Xin Yue Guan, Zishen Rahaman, Ushak Ilic, Nikolina |
| contents | In this paper, we have tested the non-unitary mixing hypothesis with the latest data from NO$ν$A and T2K experiments. We have also analysed their combined data. We have provided the best-fit values of the standard and non standard parameters after the analysis. $90\%$ limits on the non-unitary mixing parameters have also been provided. The constraints on unitary violation is stronger, compared to the constraints obtained from previous data from NO$ν$A and T2K. The tension between NO$ν$A and T2K at the $1\,σ$ for normal mass hierarchy can be reduced for non-unitary mixing due to $α_{10}$, albeit for a value of $|α_{10}|$ larger than the present global $90\%$ limit. Additionally a study of the future sensitivity of NO$ν$A, T2K and DUNE has been provided. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2501_00146 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Update on non-unitary mixing in the recent NO$ν$A and T2K data Yu, Xin Yue Guan, Zishen Rahaman, Ushak Ilic, Nikolina High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory In this paper, we have tested the non-unitary mixing hypothesis with the latest data from NO$ν$A and T2K experiments. We have also analysed their combined data. We have provided the best-fit values of the standard and non standard parameters after the analysis. $90\%$ limits on the non-unitary mixing parameters have also been provided. The constraints on unitary violation is stronger, compared to the constraints obtained from previous data from NO$ν$A and T2K. The tension between NO$ν$A and T2K at the $1\,σ$ for normal mass hierarchy can be reduced for non-unitary mixing due to $α_{10}$, albeit for a value of $|α_{10}|$ larger than the present global $90\%$ limit. Additionally a study of the future sensitivity of NO$ν$A, T2K and DUNE has been provided. |
| title | Update on non-unitary mixing in the recent NO$ν$A and T2K data |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory |
| url | https://arxiv.org/abs/2501.00146 |