论文标题
用微酮检测器的差分电流差异$ν_μ$ -Argon散射截面的首次测量
First Measurement of Differential Charged Current Quasielastic-like $ν_μ$-Argon Scattering Cross Sections with the MicroBooNE Detector
论文作者
论文摘要
我们报告了磁通的单个微分横截面的首次测量，用于带电 - 电流（CC）Muon Neutrino（$ν_μ$）散射在氩气上，带有muon和最终状态的质子，$^{40} $ ar（$ n} $ ar（$ν_μ$，$ $ $ $ p）x。使用Fermi National Accelerator实验室和Microboone液体氩时间投影室检测器的助推器中微子束进行测量，其暴露于目标上的4.59 $ \ times $ 10 $^{19} $质子。选择事件以增强CC准层（CCQE）相互作用的贡献。根据最终状态MUON和质子运动学的总横截面以及单个差分截面的报告。 We measure the integrated per-nucleus CCQE-like cross section (i.e. for interactions leading to a muon, one proton and no pions above detection threshold) of (4.93 $\pm$ 0.76stat $\pm$ 1.29sys) $\times$ 10$^{-38}$cm$^2$, in good agreement with theoretical calculations.单个差分截面也与理论预测符合总体良好的一致性，除了在非常向前的哑光散射角度对应于低动量转移事件的角度。
We report on the first measurement of flux-integrated single differential cross sections for charged-current (CC) muon neutrino ($ν_μ$) scattering on argon with a muon and a proton in the final state, $^{40}$Ar($ν_μ$,$μ$p)X. The measurement was carried out using the Booster Neutrino Beam at Fermi National Accelerator Laboratory and the MicroBooNE liquid argon time projection chamber detector with an exposure of 4.59 $\times$ 10$^{19}$ protons on target. Events are selected to enhance the contribution of CC quasielastic (CCQE) interactions. The data are reported in terms of a total cross section as well as single differential cross sections in final state muon and proton kinematics. We measure the integrated per-nucleus CCQE-like cross section (i.e. for interactions leading to a muon, one proton and no pions above detection threshold) of (4.93 $\pm$ 0.76stat $\pm$ 1.29sys) $\times$ 10$^{-38}$cm$^2$, in good agreement with theoretical calculations. The single differential cross sections are also in overall good agreement with theoretical predictions, except at very forward muon scattering angles that correspond to low momentum-transfer events.
