Anisotropic Lorentz invariance violation in reactor neutrino experiments
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866911199088607232 |
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| author | Lin, Hai-Xing Ren, Jie Tang, Jian |
| author_facet | Lin, Hai-Xing Ren, Jie Tang, Jian |
| contents | Recent reactor neutrino oscillation experiments reported precision measurements of $\sin^2 2θ_{13}$ and $Δm^2_{ee}$ under the standard 3$ν$ oscillation framework. However, inter-experiment consistency checks through the parameter goodness-of-fit test reveal proximity to the tension boundary, with the Double Chooz, RENO, and Daya Bay ensemble yielding $p_\text{PG}=0.14$ vs threshold $α=0.1$. Anisotropic Lorentz invariance violation (LIV) can accommodate this tension by introducing a location-dependent angle $θ^\text{LIV}$ relative to the earth's axis. It is found that anisotropic LIV improve the fit to data up to 1.9$σ$ confidence level significance, with the coefficient $\mathcal{A}^{C(0)}_{31} = 2.43\times 10^{-17}\text{ MeV}$ yielding the best fit, while Parameter Goodness-of-fit (PG) is significantly improved within the LIV formalism. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_02305 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Anisotropic Lorentz invariance violation in reactor neutrino experiments Lin, Hai-Xing Ren, Jie Tang, Jian High Energy Physics - Phenomenology High Energy Physics - Experiment Recent reactor neutrino oscillation experiments reported precision measurements of $\sin^2 2θ_{13}$ and $Δm^2_{ee}$ under the standard 3$ν$ oscillation framework. However, inter-experiment consistency checks through the parameter goodness-of-fit test reveal proximity to the tension boundary, with the Double Chooz, RENO, and Daya Bay ensemble yielding $p_\text{PG}=0.14$ vs threshold $α=0.1$. Anisotropic Lorentz invariance violation (LIV) can accommodate this tension by introducing a location-dependent angle $θ^\text{LIV}$ relative to the earth's axis. It is found that anisotropic LIV improve the fit to data up to 1.9$σ$ confidence level significance, with the coefficient $\mathcal{A}^{C(0)}_{31} = 2.43\times 10^{-17}\text{ MeV}$ yielding the best fit, while Parameter Goodness-of-fit (PG) is significantly improved within the LIV formalism. |
| title | Anisotropic Lorentz invariance violation in reactor neutrino experiments |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2503.02305 |