论文标题
部分可观测时空混沌系统的无模型预测
Measurements of protons and charged pions emitted from $ν_μ$ charged-current interactions on iron at a mean neutrino energy of 1.49$\,$GeV using a nuclear emulsion detector
论文作者
论文摘要
这项研究对使用核乳液检测器对铁的$ν_μ$充电 - 电流相互作用发出的im，质子和带电的亲腐蚀进行了分析。具有65 $ \的乳液检测器，$ kg铁靶被暴露于中微子光束，对应于4.0 $ \ times $ 10 $^{19} $质子，其平均中微子能量为1.49 $ \，$ gev。测量值是在质子（pions）的200（50）$ \，$ meV/$ c $的动量阈值（pions）下进行的，这是迄今为止尝试的最低动量阈值。测得的数量是im，质子和带电亲的多重性，发射角和动量。除了这些包容性测量外，还执行了独家测量值，例如特定通道的Muon-Proton发射角相关性以及CC0 $π$ 2 $ 2 $ P $事件的质子之间的开头角度。将数据与蒙特卡洛（MC）预测进行了比较，并观察到了一些显着差异。该研究的结果证明了使用核乳液检测器改善中微子相互作用模型的中微子核相互作用的详细测量能力。
This study conducted an analysis of muons, protons, and charged pions emitted from $ν_μ$ charged-current interactions on iron using a nuclear emulsion detector. The emulsion detector with a 65$\,$kg iron target was exposed to a neutrino beam corresponding to 4.0$\times$10$^{19}$ protons on target with a mean neutrino energy of 1.49$\,$GeV. The measurements were performed at a momentum threshold of 200 (50)$\,$MeV/$c$ for protons (pions), which are the lowest momentum thresholds attempted up to now. The measured quantities are the multiplicities, emission angles, and momenta of the muons, protons, and charged pions. In addition to these inclusive measurements, exclusive measurements such as the muon-proton emission-angle correlations of specific channels and the opening angle between the protons of CC0$π$2$p$ events were performed. The data were compared to Monte Carlo (MC) predictions and some significant differences were observed. The results of the study demonstrate the capability of detailed measurements of neutrino-nucleus interactions using a nuclear emulsion detector to improve neutrino interaction models.
