scholarly journals Exploring the new physics phases in 3+1 scenario in neutrino oscillation experiments

2021 ◽  
Vol 2021 (9) ◽  
Author(s):  
Nishat Fiza ◽  
Mehedi Masud ◽  
Manimala Mitra
Keyword(s):  
Neutrino Oscillation ◽  
Sterile Neutrino ◽  
New Physics ◽  
Double Beta Decay ◽  
Relevant Parameter ◽  
Neutrino Experiment ◽  
Short Baseline ◽  
Mixing Angles ◽  
Long Baseline ◽  
Deep Underground

Abstract The various global analyses of available neutrino oscillation data indicate the presence of the standard 3 + 0 neutrino oscillation picture. However, there are a few short baseline anomalies that point to the possible existence of a fourth neutrino (with mass in the eV-scale), essentially sterile in nature. Should sterile neutrino exist in nature and its presence is not taken into consideration properly in the analyses of neutrino data, the interference terms arising due to the additional CP phases in presence of a sterile neutrino can severely impact the physics searches in long baseline (LBL) neutrino oscillation experiments. In the current work we consider one light (eV-scale) sterile neutrino and probe all the three CP phases (δ13, δ24, δ34) in the context of the upcoming Deep Underground Neutrino Experiment (DUNE) and also estimate how the results improve when data from NOvA, T2K and T2HK are added in the analysis. We illustrate the ∆χ2 correlations of the CP phases among each other, and also with the three active-sterile mixing angles. Finally, we briefly illustrate how the relevant parameter spaces in the context of neutrinoless double beta decay get modified in light of the bounds in presence of a light sterile neutrino.

scholarly journals The Deep Underground Neutrino Experiment

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Maury Goodman
Keyword(s):  
Neutrino Oscillation ◽  
High Precision ◽  
Liquid Argon ◽  
Neutrino Experiment ◽  
Research Facility ◽  
Long Baseline ◽  
The Status ◽  
Deep Underground ◽  
Fermi National Accelerator Laboratory ◽  
Sanford Underground Research Facility

The Deep Underground Neutrino Experiment (DUNE) is a worldwide effort to construct a next-generation long-baseline neutrino experiment based at the Fermi National Accelerator Laboratory. It is a merger of previous efforts and other interested parties to build, operate, and exploit a staged 40 kt liquid argon detector at the Sanford Underground Research Facility 1300 km from Fermilab, and a high precision near detector, exposed to a 1.2 MW, tunableνbeam produced by the PIP-II upgrade by 2024, evolving to a power of 2.3 MW by 2030. The neutrino oscillation physics goals and the status of the collaboration and project are summarized in this paper.

scholarly journals The Short-Baseline Neutrino Program at Fermilab

2019 ◽  
Vol 69 (1) ◽  
pp. 363-387 ◽  
Author(s):  
Pedro A.N. Machado ◽  
Ornella Palamara ◽  
David W. Schmitz
Keyword(s):  
Liquid Argon ◽  
New Physics ◽  
Energy Scale ◽  
Neutrino Beam ◽  
Neutrino Experiment ◽  
Sterile Neutrinos ◽  
Short Baseline ◽  
Long Baseline ◽  
Fermi National Accelerator Laboratory ◽  
Time Projection

The Short-Baseline Neutrino (SBN) program consists of three liquid argon time-projection chamber detectors located along the Booster Neutrino Beam at Fermi National Accelerator Laboratory. Its main goals include searches for New Physics—particularly eV-scale sterile neutrinos, detailed studies of neutrino–nucleus interactions at the GeV energy scale, and the advancement of the liquid argon detector technology that will also be used in the DUNE/LBNF long-baseline neutrino experiment in the next decade. We review these science goals and the current experimental status of SBN.

scholarly journals Long-baseline neutrino oscillation physics potential of the DUNE experiment

2020 ◽  
Vol 80 (10) ◽  
Author(s):  
B. Abi ◽  
R. Acciarri ◽  
M. A. Acero ◽  
G. Adamov ◽  
D. Adams ◽  
...  
Keyword(s):  
Neutrino Oscillation ◽  
Interaction Model ◽  
Neutrino Interaction ◽  
Neutrino Experiment ◽  
Neutrino Sector ◽  
Long Baseline ◽  
Physics Potential ◽  
Charge Parity ◽  
Deep Underground ◽  
Full Simulation

AbstractThe sensitivity of the Deep Underground Neutrino Experiment (DUNE) to neutrino oscillation is determined, based on a full simulation, reconstruction, and event selection of the far detector and a full simulation and parameterized analysis of the near detector. Detailed uncertainties due to the flux prediction, neutrino interaction model, and detector effects are included. DUNE will resolve the neutrino mass ordering to a precision of 5$$\sigma $$ σ , for all $$\delta _{\mathrm{CP}}$$ δ CP values, after 2 years of running with the nominal detector design and beam configuration. It has the potential to observe charge-parity violation in the neutrino sector to a precision of 3$$\sigma $$ σ (5$$\sigma $$ σ ) after an exposure of 5 (10) years, for 50% of all $$\delta _{\mathrm{CP}}$$ δ CP values. It will also make precise measurements of other parameters governing long-baseline neutrino oscillation, and after an exposure of 15 years will achieve a similar sensitivity to $$\sin ^{2} 2\theta _{13}$$ sin 2 2 θ 13 to current reactor experiments.

scholarly journals Leptonic anomalous magnetic moments in ν SMEFT

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Vincenzo Cirigliano ◽  
Wouter Dekens ◽  
Jordy de Vries ◽  
Kaori Fuyuto ◽  
Emanuele Mereghetti ◽  
...  
Keyword(s):  
Sterile Neutrino ◽  
Magnetic Moments ◽  
New Physics ◽  
Effective Field ◽  
Double Beta Decay ◽  
Relevant Parameter ◽  
Ckm Matrix ◽  
Neutrino Production ◽  
Charged Leptons ◽  
Active Mixing

Abstract We investigate contributions to the anomalous magnetic moments of charged leptons in the neutrino-extended Standard Model Effective Field Theory (νSMEFT). We discuss how νSMEFT operators can contribute to a lepton’s magnetic moment at one- and two-loop order. We show that only one operator can account for existing electronic and muonic discrepancies, assuming new physics appears above 1 TeV. In particular, we find that a right-handed charged current in combination with minimal sterile-active mixing can explain the discrepancy for sterile neutrino masses of $$ \mathcal{O} $$ O (100) GeV while avoiding direct and indirect constraints. We discuss how searches for sterile neutrino production at the (HL-)LHC, measurements of h→μ+μ− and searches for h→e+e−, neutrinoless double beta decay experiments, and improved unitarity tests of the CKM matrix can further probe the relevant parameter space.

NEUTRINO MASSES, OSCILLATIONS, AND TESTS WITH FUTURE SUPERBEAMS AND A NEUTRINO FACTORY

2003 ◽  
Vol 18 (22) ◽  
pp. 3921-3933 ◽  
Author(s):  
M. LINDNER
Keyword(s):  
Cp Violation ◽  
Neutrino Oscillation ◽  
Neutrino Masses ◽  
Neutrino Factory ◽  
Mixing Angles ◽  
Long Baseline

Future long baseline neutrino oscillation (LBL) setups are discussed and the remarkable potential for very precise measurements of mass splittings, mixing angles, MSW effects, the sign of Δm2 and leptonic CP violation is shown. Furthermore we discuss the sensitivity improvements which can be obatined by combining the planned JHF-Superkamiokande and the proposed NuMI off-axis experiment.

scholarly journals Commissioning of a High Pressure Time Projection Chamber with Optical Readout

Instruments ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 22
Author(s):  
Alexander Deisting ◽  
Abigail Waldron ◽  
Edward Atkin ◽  
Gary Barker ◽  
Anastasia Basharina-Freshville ◽  
...  
Keyword(s):  
High Pressure ◽  
Neutrino Oscillation ◽  
Time Projection Chamber ◽  
Neutrino Experiment ◽  
Long Baseline ◽  
Neutrino Oscillation Experiment ◽  
Optical Readout ◽  
Systematic Uncertainties ◽  
Pressure Time ◽  
Time Projection

The measurements of proton–nucleus scattering and high resolution neutrino–nucleus interaction imaging are key in reducing neutrino oscillation systematic uncertainties in future experiments. A High Pressure Time Projection Chamber (HPTPC) prototype has been constructed and operated at the Royal Holloway University of London and CERN as a first step in the development of a HPTPC that is capable of performing these measurements as part of a future long-baseline neutrino oscillation experiment, such as the Deep Underground Neutrino Experiment. In this paper, we describe the design and operation of the prototype HPTPC with an argon based gas mixture. We report on the successful hybrid charge and optical readout using four CCD cameras of signals from 241Am sources.

Future prospects in neutrino physics

2021 ◽  
pp. 2130007
Author(s):  
Sandhya Choubey
Keyword(s):  
Neutrino Physics ◽  
Neutrino Oscillation ◽  
Atmospheric Neutrino ◽  
New Physics ◽  
Future Prospects ◽  
The Past ◽  
Long Baseline ◽  
Neutrino Experiments

Neutrino physics has come a long way and made great strides in the past decades. We discuss the prospects of what more can be learned in this field in the forthcoming neutrino oscillation facilities. We will mostly focus on the potential of the long-baseline experiments and the atmospheric neutrino experiments. Sensitivity of these experiments to standard neutrino oscillation parameters will be presented. We will also discuss the prospects of new physics searches at these facilities.

scholarly journals Latest Results from the T2K Neutrino Experiment

Universe ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 21
Author(s):  
Dean Karlen ◽  
on behalf of the TtwoK Collaboration
Keyword(s):  
Cp Violation ◽  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Electron Neutrino ◽  
Muon Neutrino ◽  
Neutrino Experiment ◽  
Long Baseline ◽  
Neutrino Oscillation Experiment ◽  
Electron Neutrino Appearance ◽  
Oscillation Experiment

The T2K long baseline neutrino oscillation experiment measures muon neutrino disappearance and electron neutrino appearance in accelerator-produced neutrino and anti-neutrino beams. This presentation reports on the analysis of our data from an exposure of 2 . 6 × 10 21 protons on target. Results for oscillation parameters, including the CP violation parameter and neutrino mass ordering, are shown.

scholarly journals IceCube Sterile Neutrino Searches

2019 ◽  
Vol 207 ◽  
pp. 04005 ◽  
Author(s):  
B. J. P. Jones
Keyword(s):  
Large Volume ◽  
Sterile Neutrino ◽  
Large Mass ◽  
Neutrino Telescope ◽  
Muon Neutrino ◽  
Sterile Neutrinos ◽  
Short Baseline ◽  
Mixing Angles ◽  
Neutrino Telescopes ◽  
Ongoing Work

Anomalies in short baseline experiments have been interpreted as evidence for additional neutrino mass states with large mass splittings from the known, active flavors. This explanation mandates a corresponding signature in the muon neutrino disappearance channel, which has yet to be observed. Searches for muon neutrino disappearance at the IceCube neutrino telescope presently provide the strongest limits in the space of mixing angles for eVscale sterile neutrinos. This proceeding for the Very Large Volume Neutrino Telescopes (VLVnT) Workshop summarizes the IceCube analyses that have searched for sterile neutrinos and describes ongoing work toward enhanced, high-statistics sterile neutrino searches.

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