We present an up-to-date global analysis of data coming from neutrino oscillation and non-oscillation experiments, as available in April 2018, within the standard framework including three massive and mixed neutrinos. We discuss in detail the status of the three-neutrino (3nu) mass-mixing parameters, both known and unknown. Concerning the latter, we find that: normal ordering (NO) is favored over inverted ordering (IO) at 3sigma level; the Dirac CP phase is constrained within ~15% (~9%) uncertainty in NO (IO) around nearly-maximal CP-violating values; the octant of the largest mixing angle and the absolute neutrino masses remain undetermined. We briefly comment on other unknowns related to theoretical and experimental uncertainties (within 3nu) or possible new states and interactions (beyond 3nu).

中文翻译：

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三中微子框架中的当前未知数

我们对来自中微子振荡和非振荡实验的数据进行了最新的全球分析，这些数据于 2018 年 4 月可用，在标准框架内，包括三个大质量和混合中微子。我们详细讨论了已知和未知的三中微子 (3nu) 质量混合参数的状态。关于后者，我们发现：在 3sigma 级别，正常排序 (NO) 优于倒序排序 (IO)；Dirac CP 相位被限制在约 15% (~9%) 的 NO (IO) 不确定性内，接近最大的 CP 违反值；最大混合角的八分圆和绝对中微子质量仍未确定。我们简要评论与理论和实验不确定性（在 3nu 内）或可能的新状态和相互作用（在 3nu 之外）相关的其他未知数。