在$E_ν\in0.5-2.0$ GeV上测量矿物油上$ν_μ$诱导的带电电流中性π介子产生截面
Measurement of $ν_μ$-induced charged-current neutral pion production cross sections on mineral oil at $E_ν\in0.5-2.0$ GeV
摘要：
使用定制的3个Čerenkov环拟合器，我们报告了在$0.5-2.0$ GeV的能量范围内从5810个候选事件的样本中在矿物油（\chtwo）上$ν_μ$诱导的充电电流单个$π^0$产生的截面，其中信号纯度为57%。这包括测量作为中微子能量函数的绝对总截面，以及根据$Q^2$、$μ^-$运动学和$π^0$运动学测量的通量平均微分截面。在平均中微子能量为0.965GeV时，样品的通量平均总截面为$(9.2\pm0.3_{stat.}\pm1.5_{syst.})\times10^{-39}$ cm $^2$/CH $_2$。
英文摘要：
Using a custom 3 Čerenkov-ring fitter, we report cross sections for $ν_μ$-induced charged-current single $π^0$ production on mineral oil (\chtwo) from a sample of 5810 candidate events with 57% signal purity over an energy range of $0.5-2.0$GeV. This includes measurements of the absolute total cross section as a function of neutrino energy, and flux-averaged differential cross sections measured in terms of $Q^2$, $μ^-$ kinematics, and $π^0$ kinematics. The sample yields a flux-averaged total cross section of $(9.2\pm0.3_{stat.}\pm1.5_{syst.})\times10^{-39}$cm$^2$/CH$_2$ at mean neutrino energy of 0.965GeV.
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