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Study of Neutrino Oscillations in the NOvA Experiment

机译:Nova实验中的中微子振荡研究

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摘要

NOvA is a neutrino experiment deployed at Fermi National Accelerator Laboratory (FNAL, USA) and designed for studying oscillations-namely, the appearance of electron neutrinos and the survival of muon neutrinos. Two detectors, a near and a far one, are separated by a distance of 810 km and are positioned at an angle of 14 mrad with respect to the axis of a beam from the NuMI accelerator complex. This configuration provides an optimum relationship between the energy and distance for neutrino oscillations. The experiment is aimed at measuring the neutrino mass hierarchy, determining the phase of CP violation in the lepton sector, and refining value of the parameters theta(23) and Delta m(32)(2), as well as at performing some other tasks. The results of the NOvA analysis performed jointly for a 8.85 x 10(20) proton-on-target (POT) neutrino beam and a 12.33 x 10(20) POT antineutrino beams are discussed. Also, further prospects of the experiment are outlined.
机译:NOvA是部署在费米国家加速器实验室(美国FNAL)的中微子实验,旨在研究振荡,即电子中微子的出现和μ子中微子的存活。两个探测器,一个近探测器和一个远探测器,相距810公里,与NuMI加速器复合体的束轴成14 mrad角。这种结构为中微子振荡提供了能量和距离之间的最佳关系。该实验旨在测量中微子质量等级,确定轻子区CP破坏的相位,细化参数θ(23)和δm(32)(2)的值,以及执行其他一些任务。本文讨论了对8.85×10(20)质子对靶中微子束和12.33×10(20)质子对靶中微子束联合进行NOvA分析的结果。此外,还对该实验的进一步前景进行了展望。

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