论文标题
凝固式异常：从$ν_{e} $和$ \barν_{e} $消失的全局图片的批判视图
Gallium Anomaly: Critical View from the Global Picture of $ν_{e}$ and $\barν_{e}$ Disappearance
论文作者
论文摘要
使用中微子检测横截面的不同理论计算来量化甘露异常的重要性，从最佳，gallex和Sage放射性源实验中进行了量化，并将其因中微子振荡引起的解释与反应器速率和频谱数据分析的分析相比，将其引起的解释与$β$ -DeceCay数据和SOL-DECAL NETRINO进行了比较。在3+1个主动性中微子混合方案中，镀凝剂异常与这些数据集的个体和联合边界处于强度张力。在结合所有可用数据的组合方案中，拟合的参数优点低于0.042％，对应于4-5 $σ$的严重张力，或者更强。因此，我们得出的结论是，应该为凝胶异常的短基线振荡以外的其他可能的解决方案。我们还提出了新的全局拟合$ν_e$和$ \barν_e$消失数据，表明有2.6-3.3 $σ$偏好有利于短基线振荡，这是由反应器光谱比率数据进行更新的分析所驱动的。
The significance of the Gallium Anomaly, from the BEST, GALLEX, and SAGE radioactive source experiments, is quantified using different theoretical calculations of the neutrino detection cross section, and its explanation due to neutrino oscillations is compared with the bounds from the analyses of reactor rate and spectral ratio data, $β$-decay data, and solar neutrino data. In the 3+1 active-sterile neutrino mixing scheme, the Gallium Anomaly is in strong tension with the individual and combined bounds of these data sets. In the combined scenario with all available data, the parameter goodness of fit is below 0.042%, corresponding to a severe tension of 4-5$σ$, or stronger. Therefore, we conclude that one should pursue other possible solutions beyond short-baseline oscillations for the Gallium Anomaly. We also present a new global fit of $ν_e$ and $\barν_e$ disappearance data, showing that there is a 2.6-3.3$σ$ preference in favor of short-baseline oscillations, which is driven by an updated analysis of reactor spectral ratio data.
