论文标题
当前和未来的中微子振荡限制对Leptonic Unitarity
Current and Future Neutrino Oscillation Constraints on Leptonic Unitarity
论文作者
论文摘要
Lepton混合矩阵的单位性是标准中微子混合范式的基础的关键假设。但是，许多旨在解释中微子质量尚未尚未尚未尚未尚未确定的模型，可以预测活性中微子状态混合中的单位性偏差。受前景的激励，即未来的实验可以提供对Lepton混合矩阵的精确度量，我们重新审视了当前对单位性违反振荡测量结果的限制，并预测下一代实验将如何改善我们的当前知识。借助下一代数据，Lepton混合矩阵的所有行和列的正常化将被限制在$ \ sillesim $ 10 \％的精度，并以$ e $ - 最佳测量为$ \ lyssim $ 1 \％\％\％，$τ$ - $τ$ -ROW最差 - $最糟糕的是$ {\ sim} \ sim} 10 \ sim precision。混合矩阵元素本身的测量值将平均提高$ 3 $。我们强调了沙丘，T2HK，JUNO和ICECUBE升级的互补性，以及这些改进的辅助性，以及$ν_τ$外观测量值和无菌中微子的重要性，并搜索了Leptonic Unitarity的测试。
The unitarity of the lepton mixing matrix is a critical assumption underlying the standard neutrino-mixing paradigm. However, many models seeking to explain the as-yet-unknown origin of neutrino masses predict deviations from unitarity in the mixing of the active neutrino states. Motivated by the prospect that future experiments may provide a precise measurement of the lepton mixing matrix, we revisit current constraints on unitarity violation from oscillation measurements and project how next-generation experiments will improve our current knowledge. With the next-generation data, the normalizations of all rows and columns of the lepton mixing matrix will be constrained to $\lesssim$10\% precision, with the $e$-row best measured at $\lesssim$1\% and the $τ$-row worst measured at ${\sim}10\%$ precision. The measurements of the mixing matrix elements themselves will be improved on average by a factor of $3$. We highlight the complementarity of DUNE, T2HK, JUNO, and IceCube Upgrade for these improvements, as well as the importance of $ν_τ$ appearance measurements and sterile neutrino searches for tests of leptonic unitarity.
