在展开的通量平均中微子截面测量中通量形状不确定性的处理
Treatment of flux shape uncertainties in unfolded, flux-averaged neutrino cross-section measurements
摘要：
在未折叠的通量平均中微子截面测量中，处理通量形状不确定性的确切方法在将结果与模型预测进行比较时会导致微妙的问题。报告（未知）实际通量中的截面与报告从（未知）实际通量外推到固定参考通量的截面之间存在差异。很多（大多数）。目前的分析是前者，而结果与模型预测进行比较，就好像它们是后者。这导致（部分）通量形状不确定性被忽略，可能导致错误的物理结论。影响的大小估计是次显性的，但在T2K和MINERvA的两个示例测量中不可忽略。本文介绍了如何出现的问题，并提供了可能的方式如何正确对待通量形状的不确定性的指示。
英文摘要：
The exact way of treating flux shape uncertainties in unfolded, flux-averaged neutrino cross-section measurements can lead to subtle issues when comparing the results to model predictions. There is a difference between reporting a cross section in the (unknown) real flux, and reporting a cross section that was extrapolated from the (unknown) real flux to a fixed reference flux. A lot of (most?) current analyses do the former, while the results are compared to model predictions as if they were the latter. This leads to (part of) the flux shape uncertainty being ignored, potentially leading to wrong physics conclusions. The size of the effect is estimated to be sub-dominant, but non-negligible in two example measurements from T2K and MINERvA. This paper describes how the issue arises and provides instructions for possible ways how to treat the flux shape uncertainties correctly.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
