论文标题
电子中微子散射横截面的首次测量
First Measurement of Electron Neutrino Scattering Cross Section on Argon
论文作者
论文摘要
我们根据Fermilab的GEV尺度Numi Beamine运行的Argoneut实验收集的数据报告了第一个电子中微子横截面测量值。使用13 $ν_e$和$ \overlineNν_e$事件提取了通量平均$ν_e + \overlineν_e$ $和Lepton Angle差异横截面。我们采用电磁诱导的淋浴表征和分析工具开发的，以识别$ν_e/\overlineν_e$ - 类似于Argoneut数据中的复杂交互拓扑中的事件（$ \ langle e _ {\barν_e} \ rangle = 4.3 $ gev = 4.3 $ gev和$ \ \ langle e_ e_ e_ gev $ gev。这些技术广泛适用于使用液体氩时间投影室技术在短基线和长基线上搜索电子味道外观。值得注意的是，该信中介绍的GEV规模$ν_e/\overlineν_e$交互的数据驱动研究探讨了与未来的Dune振荡物理学相关的能量制度。
We report the first electron neutrino cross section measurements on argon, based on data collected by the ArgoNeuT experiment running in the GeV-scale NuMI beamline at Fermilab. A flux-averaged $ν_e + \overlineν_e$ total and a lepton angle differential cross section are extracted using 13 $ν_e$ and $\overlineν_e$ events identified with fully-automated selection and reconstruction. We employ electromagnetic-induced shower characterization and analysis tools developed to identify $ν_e/\overlineν_e$-like events among complex interaction topologies present in ArgoNeuT data ($\langle E_{\barν_e} \rangle = 4.3$ GeV and $\langle E_{ν_e} \rangle = 10.5$ GeV). The techniques are widely applicable to searches for electron-flavor appearance at short- and long-baseline using liquid argon time projection chamber technology. Notably, the data-driven studies of GeV-scale $ν_e/\overlineν_e$ interactions presented in this Letter probe an energy regime relevant for future DUNE oscillation physics.
