Explanation of the seasonal variation of cosmic multiple muon events observed with the NOvA Near Detector
Erciyes University（埃尔齐耶斯大学）；Universidad del Atlantico（大西洋大学）；University of Mississippi（密西西比大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Joint Institute for Nuclear Research（联合核研究所）；Universidad del Magdalena（马格达莱纳大学）；University of Sussex（萨塞克斯大学）；University of Cincinnati（辛辛那提大学）；Indiana University（印第安纳大学）；Iowa State University（爱荷华州立大学）；University of California at Irvine（加州大学尔湾分校）；University of Hyderabad（海得拉巴大学）
The NOvA Collaboration
备注：
10 pages, 11 figures, 3 tables. Accepted by Phys. Rev. D
The flux of cosmic ray muons at the Earth's surface exhibits seasonal variations due to changes in the temperature of the atmosphere affecting the production and decay of mesons in the upper atmosphere. Using 1473 live days of data collected by the NuMI Off-axis $ν_e$ Appearance (NOvA) Near Detector during 2018--2022, we studied the seasonal pattern in the multiple-muon event rate. The data confirm an anticorrelation between the multiple-muon event rate and effective atmospheric temperature, consistent across all the years of data. Previous analyses from MINOS and NOvA saw a similar anticorrelation but did not include an explanation. We find that this anticorrelation is driven by altitude--geometry effects as the average muon production height changes with the season. This has been studied with a CORSIKA cosmic ray simulation package by varying atmospheric parameters, and provides an explanation to a longstanding discrepancy between the seasonal phases of single and multiple-muon events.
NuMI离轴现象（英语：NuMI Off-Axis v Appearance，缩写：NOvA）实验是一个长基线中微子振荡实验，使用的是费米实验室的NuMI光束线产生的中微子源。该实验将使用两个功能相同的塑料液体闪烁体填充探测器研究μ子中微子到电子中微子的振荡，该探测器放置在离轴14毫弧度的NuMI光束上。带电中微子相互作用将被用来观察中微子味从识别的最终状态轻子。μ子带电粒子径迹的重建在探测器对准和校准的短期目标以及通过识别μ子带电电流事件的长期振荡分析中起着重要作用。提出了一种基于卡尔曼滤波的μ子径迹识别和径迹拟合的初步方法。
First inclusive triple-differential measurement of the muon-antineutrino charged-current cross section using the NOvA Near Detector
Erciyes University（埃尔吉耶斯大学）；Universidad del Atlantico（大西洋大学）；University of Mississippi（密西西比大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Joint Institute for Nuclear Research（联合核研究所）；Universidad del Magdalena（马格达莱纳大学）；University of Sussex（萨塞克斯大学）；University of Cincinnati（辛辛那提大学）；University of California at Irvine（加州大学尔湾分校）；University of Hyderabad（海得拉巴大学）
Measurement of $π^0$ Production in $\barν_μ$ Charged-Current Interactions in the NOvA Near Detector
Erciyes University（埃尔齐耶斯大学）；Universidad del Atlantico（大西洋大学）；University of Mississippi（密西西比大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Joint Institute for Nuclear Research（苏联联合核研究所）；Universidad del Magdalena（马格达莱纳大学）；University of Sussex（萨塞克斯大学）；University of Cincinnati（辛辛那提大学）；Indiana University（印第安纳大学）；Iowa State University（爱荷华州立大学）；University of California at Irvine（加州大学尔湾分校）；University of Hyderabad（海得拉巴大学）
Biases in the Determination of Correlations Between Underground Muon Flux and Atmospheric Temperature
School of Physics, Shandong University（山东大学物理学院）；Department of Physics and Astronomy, University of California, Irvine（加州大学尔湾分校物理与天文学系）；Jockey Club Institute for Advanced Study and Department of Physics, The Hong Kong University of Science and Technology（香港科技大学赛马会高级研究院及物理系）；Department of Physics, University of California, Berkeley（加州大学伯克利分校物理系）；Lawrence Berkeley National Laboratory（劳伦斯伯克利国家实验室）；Faculty of Mathematics and Physics, Charles University（查理大学数学与物理学院）
Measurement of the $\bar ν_μ-$Hydrogen Charged-Current Quasi-Elastic Cross Section using the NOvA Near Detector
Erciyes University（埃尔吉耶斯大学）；Universidad del Atlantico（大西洋大学）；University of Mississippi（密西西比大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Joint Institute for Nuclear Research（联合核研究所）；Universidad del Magdalena（马格达莱纳大学）；University of Sussex（萨塞克斯大学）；University of Cincinnati（辛辛那提大学）；University of California at Irvine（加州大学尔湾分校）；University of Hyderabad（海德拉巴大学）
Precision measurement of neutrino oscillation parameters with 10 years of data from the NOvA experiment
Erciyes University（埃尔吉耶斯大学）；Universidad del Atlantico（大西洋大学）；University of Mississippi（密西西比大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Joint Institute for Nuclear Research（联合核研究所）；Universidad del Magdalena（马格达莱纳大学）；Department of Physics and Astronomy, University of Sussex（萨塞克斯大学物理与天文系）；Department of Physics, University of Cincinnati（辛辛那提大学物理系）；Instituto de Física, Universidade Federal de Goiás（戈亚斯联邦大学物理研究所）；Indiana University（印第安纳大学）；Department of Physics and Astronomy, Iowa State University（爱荷华州立大学物理与天文系）；Department of Physics and Astronomy, University of California at Irvine（加州大学欧文分校物理与天文系）；School of Physics, University of Hyderabad（海德拉巴大学物理学院）
