Measurement of the neutrino mixing angle ${\theta }_{23}$ in NOvA

Abstract

This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of $6.05\times 10^{20}$ protons-on-target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal mixing (${\theta }_{23}=\pi /4$). Assuming the normal mass hierarchy, we find $\Delta m^2=(2.67\pm 0.11)\times 10^{-3}$ eV${}^2$ and ${\sin }^2{\theta }_{23}$ at the two statistically degenerate values $0.404_{-0.022}^{+0.030}$ and $0.624_{-0.030}^{+0.022}$, both at the 68% confidence level. Our data disfavor the maximal mixing scenario with 2.6 $\sigma$ significance.

arXiv comment7 pages, 3 figures

References in corpus (34)

• A Unified Approach to the Classical Statistical Analysis of Small Signals
• The GENIE Neutrino Monte Carlo Generator
• Precision Measurement of Neutrino Oscillation Parameters with KamLAND
• Measurement of Neutrino Oscillation by the K2K Experiment
• Combined Analysis of all Three Phases of Solar Neutrino Data from the Sudbury Neutrino Observatory
• Solar neutrino results in Super-Kamiokande-III
• Neutrino Mass and Mixing: from Theory to Experiment
• The NuMI Neutrino Beam
• Atmospheric neutrino oscillation analysis with sub-leading effects in Super-Kamiokande I, II, and III
• Measurements of neutrino oscillation in appearance and disappearance channels by the T2K experiment with 6.6E20 protons on target
• First measurement of electron neutrino appearance in NOvA
• Observation of Energy and Baseline Dependent Reactor Antineutrino Disappearance in the RENO Experiment
• Neutrino-nucleus quasi-elastic and 2p2h interactions up to 10 GeV
• Inclusive quasi-elastic electron-nucleus scattering
• Combined analysis of ${\nu }_{\mu }$ disappearance and ${\nu }_{\mu }\to {\nu }_e$ appearance in MINOS using accelerator and atmospheric neutrinos
• A new measurement of antineutrino oscillation with the full detector configuration at Daya Bay
• Improved measurements of the neutrino mixing angle ${\theta }_{13}$ with the Double Chooz detector
• Measurement of Muon Neutrino Quasi-Elastic Scattering on Carbon
• A review of mu-tau flavor symmetry in neutrino physics
• First combined analysis of neutrino and antineutrino oscillations at T2K
• Inclusive production of charged pions in p+C collisions at 158 GeV/c beam momentum
• Determining neutrino oscillation parameters from atmospheric muon neutrino disappearance with three years of IceCube DeepCore data
• Identification of nuclear effects in neutrino-carbon interactions at low three-momentum transfer
• First measurement of muon-neutrino disappearance in NOvA
• Reanalysis of bubble chamber measurements of muon-neutrino induced single pion production
• Measurement of double-differential muon neutrino charged-current interactions on C${}_8$H${}_8$ without pions in the final state using the T2K off-axis beam
• Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data
• Quasielastic and multinucleon excitations in antineutrino-nucleus interactions
• Meson-exchange currents and quasielastic predictions for charged-current neutrino-12C scattering in the superscaling approach
• Many-Body Interactions of Neutrinos with Nuclei - Observables
• Study of quasielastic scattering using charged-current nu_mu-iron interactions in the MINOS Near Detector
• Multinucleon ejection model for Meson Exchange Current neutrino interactions
• Liquid scintillator production for the NOvA experiment
• Large CP Violation, Large Mixings of Neutrinos and Democratic-type Neutrino Mass Matrix

Cited by in corpus (64)

• Status of neutrino oscillations 2018: first hint for normal mass ordering and improved CP sensitivity
• Global constraints on absolute neutrino masses and their ordering
• Flavor structures of charged fermions and massive neutrinos
• Atmospheric neutrino oscillation analysis with external constraints in Super-Kamiokande I-IV
• Measurement of Reactor Antineutrino Oscillation Amplitude and Frequency at RENO
• Measurement of Atmospheric Neutrino Oscillations at 6-56 GeV with IceCube DeepCore
• New constraints on oscillation parameters from ${\nu }_e$ appearance and ${\nu }_{\mu }$ disappearance in the NOvA experiment
• First combined analysis of neutrino and antineutrino oscillations at T2K
• Constraints on Oscillation Parameters from ${\nu }_e$ Appearance and ${\nu }_{\mu }$ Disappearance in NOvA
• Prospects for Beyond the Standard Model Physics Searches at the Deep Underground Neutrino Experiment
• Neutrino masses and their ordering: Global Data, Priors and Models
• Characterisation of nuclear effects in muon-neutrino scattering on hydrocarbon with a measurement of final-state kinematics and correlations in charged-current pionless interactions at T2K
• Search for active-sterile neutrino mixing using neutral-current interactions in NOvA
• Analysis of the vector and axialvector $QQ\bar{Q}\bar{Q}$ tetraquark states with QCD sum rules
• Atmospheric Neutrino Oscillation Analysis With Improved Event Reconstruction in Super-Kamiokande IV
• Event Generators for High-Energy Physics Experiments
• Trimaximal $\mu$-$\tau$ reflection symmetry
• Simultaneous measurement of the muon neutrino charged-current cross section on oxygen and carbon without pions in the final state at T2K
• The Dark Side of the Littlest Seesaw: freeze-in, the two right-handed neutrino portal and leptogenesis-friendly fimpzillas
• Naturally Light Dirac Neutrino in Left-Right Symmetric Model
• Neutrinos, DUNE and the world best bound on CPT invariance
• Visible neutrino decay in the light of appearance and disappearance long baseline experiments
• Nonmaximal ${\theta }_{23}$ mixing at NOvA from neutrino decoherence
• Dark sector-photon interactions in proton-beam experiments
• Breakings of the neutrino mu-tau reflection symmetry
• Decoherence, matter effect, neutrino hierarchy signature in long baseline experiments
• Mu-tau symmetry and the Littlest Seesaw
• Non-Minimal Flavored ${\mathbf{S}}_3\otimes {\mathbf{Z}}_2$ Left-Right Symmetric Model
• Neutrino mu-tau reflection symmetry and its breaking in the minimal seesaw
• Lepton-Nucleus Cross Section Measurements for DUNE with the LDMX Detector
• Physics with Reactor Neutrinos
• Fitting high-energy Littlest Seesaw parameters using low-energy neutrino data and leptogenesis
• Effect of systematics in the T2HK, T2HKK, and DUNE experiments
• Zooming in on neutrino oscillations with DUNE
• Neutrino oscillations and Non-Standard Interactions
• Comparisons and challenges of modern neutrino scattering experiments (TENSIONS2016 report)
• A study on a minimally broken residual TBM-Klein symmetry with its implications on flavoured leptogenesis and ultra high energy neutrino flux ratios
• Scalar Democracy
• A full analytic solution of $SO(10)$-inspired leptogenesis
• Quasi-elastic neutrino charged-current scattering off ${}^{12}$C: effects of the meson exchange currents and large nucleon axial mass
• A Comprehensive Renormalisation Group Analysis of the Littlest Seesaw Model
• Expanding neutrino oscillation parameter measurements in NOvA using a Bayesian approach
• CP transformed mixed $\mu \tau$ antisymmetry for neutrinos and its consequences
• Importance of generalized $\mu \tau$ symmetry and its CP extension on neutrino mixing and leptogenesis
• First Measurement of the Charged Current ${\overline{\nu }}_{\mu }$ Double Differential Cross Section on a Water Target without Pions in the final state
• Neutrino phenomenology in the flavored NMSSM without domain wall problems
• Comparisons and challenges of modern neutrino-scattering experiments (TENSIONS 2019 report)
• Measurement of ${\nu }_{\mu }$ Charged-Current Inclusive ${\pi }^0$ Production in the NOvA Near Detector
• Fermion masses and flavor mixings and strong CP problem
• Confronting Tri-direct CP-symmetry models to neutrino oscillation experiments
• Charged current deep inelastic scattering of muon neutrinos off ^{56}Fe
• Neutrino Parameters from Reactor and Accelerator Neutrino Experiments
• Sterile Neutrino Searches at the IceCube Neutrino Observatory
• Probing a Four Flavour vis-a-vis Three Flavour Neutrino Mixing for UHE Neutrino Signals at a 1 ${\mathrm{Km}}^2$ Detector
• Charged current quasi elastic scattering of muon neutrino with nuclei
• Hybrid seesaw neutrino model in SUSY $SU(5)\times {\mathbb{A}}_4$
• Matter vs Vacuum oscillations in Atmospheric Neutrinos
• Leptonic Invariants, Neutrino Mass-Ordering and the Octant of ${\theta }_{23}$
• Uncertainties in neutrino oscillation parameter sensitivity due to resonance processes at NO$\nu$A
• Inflation and Leptogenesis in a $U(1)$-enhanced supersymmetric model
• Impact of Nuclear effects in Energy Reconstruction Methods on Sensitivity of Neutrino Oscillation Parameters at NO$\nu$A experiment
• Current Status and Future Plans of T2K
• Charged current quasi elastic scattering of muon anti-neutrino off ^{12}C
• Could an hypercritical accretion be associated with the atypical magnetic-field behavior in RX J0822-4300?