论文标题
提示的命运：三味中微子振荡的全球分析更新
The fate of hints: updated global analysis of three-flavor neutrino oscillations
论文作者
论文摘要
我们在本文中描述了对中微子2020会议上最新中微子振荡数据的合并分析表明，中微子质量订购的先前提示明显减少，而正常订购（NO）仅在$1.6σ$水平下受到青睐。结合Super-Kamiokande为其大气中微子数据分析提供的$χ^2 $地图，提示为NO的提示为$2.7σ$。 CP保存值$δ_\ text {cp} = 180^\ circ $在全球最佳拟合点的$0.6σ$之内。只有当我们限制倒数批量排序时，CP违规行为在$ \ sim3σ$级别上受到青睐。我们讨论了这些结果的起源 - 这些结果是由T2K和NOVA长基线实验的新数据驱动的，以及LBL反应器振荡频率互补性的相关性。在包含最新的Super-Kamiokande Solar Neutrino结果之后，Kamland和太阳能实验首选的$δm^2_ {21} $的$2.2σ$张力也将降低至1.1σ$级别。最终，我们提出了更新的振荡参数范围，以及从全局分析中的Leptonic Jarlskog决定因素的范围。
Our herein described combined analysis of the latest neutrino oscillation data presented at the Neutrino2020 conference shows that previous hints for the neutrino mass ordering have significantly decreased, and normal ordering (NO) is favored only at the $1.6σ$ level. Combined with the $χ^2$ map provided by Super-Kamiokande for their atmospheric neutrino data analysis the hint for NO is at $2.7σ$. The CP conserving value $δ_\text{CP} = 180^\circ$ is within $0.6σ$ of the global best fit point. Only if we restrict to inverted mass ordering, CP violation is favored at the $\sim 3σ$ level. We discuss the origin of these results - which are driven by the new data from the T2K and NOvA long-baseline experiments -, and the relevance of the LBL-reactor oscillation frequency complementarity. The previous $2.2σ$ tension in $Δm^2_{21}$ preferred by KamLAND and solar experiments is also reduced to the $1.1σ$ level after the inclusion of the latest Super-Kamiokande solar neutrino results. Finally we present updated allowed ranges for the oscillation parameters and for the leptonic Jarlskog determinant from the global analysis.
