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arXiv 1902.09480hep-phhep-exnucl-exnucl-thphysics.ins-det
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用（反）中微子-氢相互作用精确测定（反）中微子通量

A Precise Determination of (Anti)neutrino Fluxes with (Anti)neutrino-Hydrogen Interactions

H. Duyang, B. Guo, S. R. Mishra, R. Petti

备注：
Final version published in PLB (15 pages, 7 figures, 2 tables)
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摘要：

我们提出了一种新的方法来准确地确定中微子和反中微子的流量，其中一个主要的系统不确定性影响当前和未来的长基线中微子实验，以及精密中微子散射实验。在$ν(\bar ν)$ -氢相互作用中，使用具有小强子能量的$ν_μp \to μ^- p π^+$、$\bar ν_μp \to μ^+ p π^-$和$\bar ν_μp \to μ^+ n$的独特拓扑，在覆盖大部分可用通量的能量范围内，我们获得了优于1%的相对通量的总体精度.由于我们不能依赖于模拟，也没有模型校正在这个精度水平，我们提出的技术来约束所有相关的系统的不确定性，使用数据本身。该方法可以使用我们最近提出的方法来实现，以收集高统计样本的$ν(\bar ν)$ -氢相互作用在低密度和高分辨率的检测器，这可以作为一个长基线中微子实验中的近检测器复合体的一部分，以及一个专用的光束监测检测器。

英文摘要：

We present a novel method to accurately determine the flux of neutrinos and antineutrinos, one of the dominant systematic uncertainty affecting current and future long-baseline neutrino experiments, as well as precision neutrino scattering experiment. Using exclusive topologies in $ν(\bar ν)$-hydrogen interactions, $ν_μp \to μ^- p π^+$, $\bar ν_μp \to μ^+ p π^-$, and $\bar ν_μp \to μ^+ n$ with small hadronic energy, we achieve an overall accuracy on the relative fluxes better than 1\% in the energy range covering most of the available flux. Since we cannot rely on simulations nor model corrections at this level of precision, we present techniques to constrain all relevant systematic uncertainties using data themselves. The method can be implemented using the approach we recently proposed to collect high statistics samples of $ν(\bar ν)$-hydrogen interactions in a low-density and high-resolution detector, which could serve as part of the near detector complex in a long-baseline neutrino experiment, as well as a dedicated beam monitoring detector.

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。

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