Viability of $A_4$, $S_4$ and $A_5$ Flavour Symmetries in Light of the First JUNO Result
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866908897935097856 |
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| author | Petcov, S. T. Titov, A. V. |
| author_facet | Petcov, S. T. Titov, A. V. |
| contents | We update the analysis of the viability of the lepton mixing patterns originating from $A_4$, $S_4$ and $A_5$ discrete flavour symmetries and leading to predictions for the solar neutrino mixing angle, $θ_{12}$. We perform a statistical analysis using as an input (i) the results of the latest global fit to neutrino oscillation data, and (ii) the first JUNO measurement of $\sin^2θ_{12}$. Out of the five (four) cases compatible with the global data at $3σ$ for normal (inverted) neutrino mass ordering, only three (two) cases remain compatible with the global data at the same confidence level after taking into account the JUNO result. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2511_19408 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Viability of $A_4$, $S_4$ and $A_5$ Flavour Symmetries in Light of the First JUNO Result Petcov, S. T. Titov, A. V. High Energy Physics - Phenomenology High Energy Physics - Experiment We update the analysis of the viability of the lepton mixing patterns originating from $A_4$, $S_4$ and $A_5$ discrete flavour symmetries and leading to predictions for the solar neutrino mixing angle, $θ_{12}$. We perform a statistical analysis using as an input (i) the results of the latest global fit to neutrino oscillation data, and (ii) the first JUNO measurement of $\sin^2θ_{12}$. Out of the five (four) cases compatible with the global data at $3σ$ for normal (inverted) neutrino mass ordering, only three (two) cases remain compatible with the global data at the same confidence level after taking into account the JUNO result. |
| title | Viability of $A_4$, $S_4$ and $A_5$ Flavour Symmetries in Light of the First JUNO Result |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2511.19408 |