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Study of Neutrino Oscillations in the NOvA Experiment

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Abstract

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 \(\Delta m^{2}_{32}\), as well as at performing some other tasks. The results of the NOvA analysis performed jointly for a \(8.85\times 10^{20}\) proton-on-target (POT) neutrino beam and a \(12.33\times 10^{20}\) POT antineutrino beams are discussed. Also, further prospects of the experiment are outlined.

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ACKNOWLEDGMENTS

We are grateful to A.G. Olshevsky, head of the NOvA project at Joint Institute for Nuclear Research (JINR, Dubna) for stimulating discussions.

Funding

This study was supported in part by Russian Science Foundation (project no. 18-12-00271) and Russian Foundation for Basic Research (project no. 19-32-90058).

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, Russia

    L. D. Kolupaeva & O. B. Samoylov

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  1. L. D. Kolupaeva
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  2. O. B. Samoylov
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Correspondence to L. D. Kolupaeva or O. B. Samoylov.

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Kolupaeva, L.D., Samoylov, O.B. Study of Neutrino Oscillations in the NOvA Experiment. Phys. Atom. Nuclei 84, 63–67 (2021). https://doi.org/10.1134/S1063778821010117

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  • DOI: https://doi.org/10.1134/S1063778821010117

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