scholarly journals Some uncertainties of neutrino oscillation effect in the NOνA experiment

2016 ◽  
Vol 31 (12) ◽  
pp. 1650077 ◽  
Author(s):  
Lyudmila D. Kolupaeva ◽  
Konstantin S. Kuzmin ◽  
Olga N. Petrova ◽  
Igor M. Shandrov
Keyword(s):  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Cross Sections ◽  
Forward Scattering ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Oscillation Effect ◽  
Neutrino Scattering ◽  
The Cross ◽  
Nuclear Targets

Uncertainties related to the effect of neutrino coherent forward scattering in Earth’s matter (MSW mechanism) and with the cross-sections of quasi-elastic (QE) neutrino scattering on nuclear targets of the NO[Formula: see text]A detectors are studied. The NO[Formula: see text]A sensitivity to the neutrino mass hierarchy and the CP violating phase is discussed.

scholarly journals LONG BASELINE NEUTRINO EXPERIMENTS WITH TWO-DETECTOR SETUP

2008 ◽  
Vol 23 (21) ◽  
pp. 3388-3394
Author(s):  
HISAKAZU MINAKATA
Keyword(s):  
Cp Violation ◽  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Neutrino Factory ◽  
Long Baseline ◽  
Neutrino Experiments

I discuss why and how powerful is the two-detector setting in neutrino oscillation experiments. I cover three concrete examples: (1) reactor θ13 experiments, (2) T2KK, Tokai-to-Kamioka-Korea two-detector complex for measuring CP violation, determining the neutrino mass hierarchy, and resolving the eight-fold parameter degeneracy, (3) two-detector setting in a neutrino factory at baselines 3000 km and 7000 km for detecting effects of non-standard interactions (NSI) of neutrinos.

scholarly journals A Phenomenological Model of Effectively Oscillating Massless Neutrinos and Its Implications

2020 ◽  
Vol 240 ◽  
pp. 02002
Author(s):  
Jianlong Lu ◽  
Aik Hui Chan ◽  
Choo Hiap Oh
Keyword(s):  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Phenomenological Model ◽  
Double Beta Decay ◽  
Neutrino Masses ◽  
Mass Hierarchy ◽  
Neutrino Mixing ◽  
Open Problems ◽  
Neutrino Mass Hierarchy ◽  
Flavor Changing

We discuss an alternative picture of neutrino oscillation. In this phenomenological model, the flavor-changing phenomena of massless neutrinos arise from scattering processes between neutrinos and four types of undetected spin-0 massive particles pervading throughout the Universe, instead of neutrinos’ own nature. These scattering processes are kinematically similar to Compton scattering. One type of left-handed massless sterile neutrino is needed in order to reproduce the neutrino oscillation modes predicted in the theory of neutrino mixing. Implications of our model include the existence of sterile neu- trinos, the nonconservation of active neutrinos, the possible mismatch among three neutrino mass squared differences ∆m2ij interpreted in the theory of neutrino mixing, the spacetime dependence of neutrino oscillation, and the impossibility of neutrinoless double beta decay. Several important open problems in neutrino physics become trivial or less severe in our model, such as the smallness of neutrino masses, neutrino mass hierarchy, the mechanism responsible for neutrino masses, and the Dirac/Majorana nature of neutrinos.

scholarly journals Results on Neutrino and Antineutrino Oscillations from the NOvA Experiment

2019 ◽  
Vol 64 (7) ◽  
pp. 613
Author(s):  
T. Nosek
Keyword(s):  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Muon Neutrino ◽  
Neutrino Beam ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Long Baseline ◽  
Neutrino Oscillation Experiment ◽  
Beam Mode ◽  
Oscillation Experiment

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.

scholarly journals Earth tomography with neutrinos in KM3NeT-ORCA

2019 ◽  
Vol 207 ◽  
pp. 04008
Author(s):  
Simon Bourret ◽  
Véronique Van Elewyck
Keyword(s):  
Electron Density ◽  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Lower Mantle ◽  
Outer Core ◽  
Mass Hierarchy ◽  
Atmospheric Neutrinos ◽  
Neutrino Mass Hierarchy ◽  
The Earth ◽  
Earth’S Interior

The study of atmospheric neutrinos crossing the Earth can provide tomographic information on the Earth’s interior, complementary to the standard geophysics methods. This contribution presents an updated study of the potential of the KM3NeT-ORCA detector for neutrino oscillation tomography of the Earth, showing that after ten years of operation it can measure the electron density in both the lower mantle and the outer core with a precision of a few percents in the case of normal neutrino mass hierarchy.

scholarly journals Physics Potential of Long-Baseline Experiments

2014 ◽  
Vol 2014 ◽  
pp. 1-29 ◽  
Author(s):  
Sanjib Kumar Agarwalla
Keyword(s):  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
New Physics ◽  
Mass Hierarchy ◽  
Neutrino Mixing ◽  
Neutrino Mass Hierarchy ◽  
Mixing Angle ◽  
Long Baseline ◽  
Physics Potential ◽  
Flavor Oscillation

The discovery of neutrino mixing and oscillations over the past decade provides firm evidence for new physics beyond the Standard Model. Recently,θ13has been determined to be moderately large, quite close to its previous upper bound. This represents a significant milestone in establishing the three-flavor oscillation picture of neutrinos. It has opened up exciting prospects for current and future long-baseline neutrino oscillation experiments towards addressing the remaining fundamental questions, in particular the type of the neutrino mass hierarchy and the possible presence of a CP-violating phase. Another recent and crucial development is the indication of non-maximal 2-3 mixing angle, causing the octant ambiguity ofθ23. In this paper, I will review the phenomenology of long-baseline neutrino oscillations with a special emphasis on sub-leading three-flavor effects, which will play a crucial role in resolving these unknowns. First, I will give a brief description of neutrino oscillation phenomenon. Then, I will discuss our present global understanding of the neutrino mass-mixing parameters and will identify the major unknowns in this sector. After that, I will present the physics reach of current generation long-baseline experiments. Finally, I will conclude with a discussion on the physics capabilities of accelerator-driven possible future long-baseline precision oscillation facilities.

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