Imprints of a light Sterile Neutrino at DUNE, T2HK and T2HKK

Abstract

We evaluate the impact of sterile neutrino oscillations in the so-called 3+1 scenario on the proposed long baseline experiment in USA and Japan. There are two proposals for the Japan experiment which are called T2HK and T2HKK. We show the impact of sterile neutrino oscillation parameters on the expected sensitivity of T2HK and T2HKK to mass hierarchy, CP violation and octant of ${\theta }_{23}$ and compare it against that expected in the case of standard oscillations. We add the expected ten years data from DUNE and present the combined expected sensitivity of T2HKK+DUNE to the oscillation parameters. We do a full marginalisation over the relevant parameter space and show the effect of the magnitude of the true sterile mixing angles on the physics reach of these experiments. We show that if one assumes that the source of CP violation is the standard CP phase alone in the test case, then it appears that the expected CP violation sensitivity decreases due to sterile neutrinos. However, if we give up this assumption, then the CP sensitivity could go in either direction. The impact on expected octant of ${\theta }_{23}$ and mass hierarchy sensitivity is shown to depend on the magnitude of the sterile mixing angles in a nontrivial way.

27 pages, 10 figures, accepted for publication in Phys. Rev. D with minor changes

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Cited by in corpus (30)

• Sterile Neutrinos
• Status of Light Sterile Neutrino Searches
• DUNE sensitivities to the mixing between sterile and tau neutrinos
• How to Identify Different New Neutrino Oscillation Physics Scenarios at DUNE
• Measuring the Sterile Neutrino CP Phase at DUNE and T2HK
• Exploring the Potential of Short-Baseline Physics at Fermilab
• The Effect of a Light Sterile Neutrino at NO$\nu$A and DUNE
• The Impact of Different Parameterizations on the Interpretation of CP Violation in Neutrino Oscillations
• Exploring NSI degeneracies in long-baseline experiments
• Imprints of scalar NSI on the CP-violation sensitivity using synergy among DUNE, T2HK and T2HKK
• Matter Effect of Light Sterile Neutrino: An Exact Analytical Approach
• Physics Potential of ESS$\nu$SB in the presence of a Light Sterile Neutrino
• Active-sterile neutrino oscillations at INO-ICAL over a wide mass-squared range
• A review of the tension between the T2K and NO$\nu$A appearance data and hints to new physics
• Study of light sterile neutrino at the long-baseline experiment options at KM3NeT
• Prospects of light sterile neutrino searches in long-baseline neutrino oscillations
• A compact analytical approximation for a light sterile neutrino oscillation in matter
• Impact of scalar NSI on the neutrino mass ordering sensitivity at DUNE, HK and KNO
• On ${\theta }_{23}$ Octant Measurement in $3+1$ Neutrino Oscillations in T2HKK
• Determination of the ${\theta }_{23}$ octant in long baseline neutrino experiments within and beyond the standard model
• Exploring fake solutions in the sterile neutrino sector at long-baseline experiments
• Prospects and requirements of opaque detectors in accelerator neutrino experiments
• Light sterile neutrinos and their implications on currently running long-baseline and neutrinoless double beta decay experiments
• Exploring the new physics phases in 3+1 scenario in neutrino oscillation experiments
• Updated sensitivity of DUNE in 3+1 scenario with far and near detectors
• Probing a Four Flavour vis-a-vis Three Flavour Neutrino Mixing for UHE Neutrino Signals at a 1 ${\mathrm{Km}}^2$ Detector
• Effects of tau-neutrino detection on non-standard interactions at DUNE with a short discussion on the nature of neutrino mixing
• Sterile sector impacting the correlations and degeneracies among mixing parameters at the Deep Underground Neutrino Experiment
• Impact of CP violation searches at MOMENT experiment with sterile neutrinos
• The Sensitivity of DUNE in Presence of Off-Diagonal Scalar NSI Parameters