Results on Neutrino and Antineutrino Oscillations from the NOvA Experiment

  • T. Nosek Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics
Keywords: neutrino oscillations, long-baseline experiment, NOvA, Fermilab

Abstract

NOvA is a two-detector long-baseline neutrino oscillation experiment using Fermilab’s 700 kW NuMI muon neutrino beam. With a total exposure of 8.85×1020 +12.33×1020 protons on target delivered to NuMI in the neutrino + antineutrino beam mode (78% more antineutrino data than in 2018), the experiment has made a 4.4q-significant observation of the ve appearance in a vм beam, measured oscillation parameters |Δm232|, sin2O23, and excluded most values near бCP = п/2 for the inverted neutrino mass hierarchy by more than 3q.

References

M.A. Acero et al.. First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA. FERMILAB-PUB-19-272-ND, arXiv:1906.04907 [hep-ex].

M. Tanabashi et al. [Particle Data Group]. Review of Particle Physics. Phys. Rev. D 98, 030001 (2018).

D.S. Ayres et al. [NOvA Collaboration]. The NOvA technical design report. FERMILAB-DESIGN-2007-01. https://doi.org/10.2172/935497

A. Aurisano et al. A convolutional neural network neutrino event classifier. JINST 11, P09001 (2016), arXiv:1604.01444 [hep-ex]. https://doi.org/10.1088/1748-0221/11/09/P09001

P. Adamson et al. [NOvA Collaboration]. New constraints on oscillation parameters from ve appearance and vм disappearance in the NOvA experiment. Phys. Rev. D 98, 032012 (2018), arXiv:1806.00096 [hep-ex].

P. Adamson et al. [MINOS Collaboration], The NuMI neutrino beam. Nucl. Instrum. Meth. A 806, 279 (2016), arXiv:1507.06690 [physics.acc-ph].

G.J. Feldman, R.D. Cousins. A unified approach to the classical statistical analysis of small signals. Phys. Rev. D 57, 3873 (1998), arXiv:physics/9711021 [physics.data-an]. https://doi.org/10.1103/PhysRevD.57.3873

P. Adamson et al. [MINOS Collaboration]. Combined analysis of vм disappearance and vм > ve appearance in MINOS using accelerator and atmospheric neutrinos. Phys. Rev. Lett. 112, arXiv:1403.0867 [hep-ex].

K. Abe et al. [T2K Collaboration]. Search for CP violation in neutrino and antineutrino oscillations by the T2K experiment with 2.2 ? 1021 protons on target. Phys. Rev. Lett. 121, 171802 (2018), arXiv:1807.07891 [hep-ex].

M.G. Aartsen et al. [IceCube Collaboration]. Measurement of atmospheric neutrino oscillations at 656 GeV with ice cube deep core. Phys. Rev. Lett. 120, 071801 (2018), arXiv:1707.07081 [hep-ex].

K. Abe et al. [Super-Kamiokande Collaboration]. Atmospheric neutrino oscillation analysis with external constraints in Super-Kamiokande I-IV. Phys. Rev. D 97, 072001 (2018), arXiv:1710.09126 [hep-ex].

Published
2019-09-17
How to Cite
Nosek, T. (2019). Results on Neutrino and Antineutrino Oscillations from the NOvA Experiment. Ukrainian Journal of Physics, 64(7), 613. https://doi.org/10.15407/ujpe64.7.613
Section
New Trends in High-Energy Physics (Conference materials)