Search for light sterile neutrinos with the T2K far detector Super-Kamiokande at a baseline of 295 km

Abstract

We perform a search for light sterile neutrinos using the data from the T2K far detector at a baseline of 295 km, with an exposure of 14.7 (7.6)$\times 10^{20}$ protons on target in neutrino (antineutrino) mode. A selection of neutral current interaction samples are also used to enhance the sensitivity to sterile mixing. No evidence of sterile neutrino mixing in the 3+1 model was found from a simultaneous fit to the charged-current muon, electron and neutral current neutrino samples. We set the most stringent limit on the sterile oscillation amplitude ${\sin }^2{\theta }_{24}$ for the sterile neutrino mass splitting $\Delta m_{41}^2<3\times 10^{-3}$ eV${}^2/c^4$.

9 pages, 4 figures

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• Dual baseline search for muon antineutrino disappearance at 0.1 eV^2 < Δm^2 < 100 eV^2
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Cited by in corpus (18)

• Snowmass White Paper: Beyond the Standard Model effects on Neutrino Flavor
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• New oscillation and scattering constraints on the tau row matrix elements without assuming unitarity
• Three-flavour oscillations with accelerator neutrino beams
• Very Light Sterile Neutrinos at NOvA and T2K
• Neutrinoless double beta decay in Left-Right symmetric model with double seesaw mechanism
• Prospects of light sterile neutrino searches in long-baseline neutrino oscillations
• Dual-Baseline Search for Active-to-Sterile Neutrino Oscillations in NOvA
• Neutrino magnetic moment and inert doublet dark matter in a Type-III radiative scenario
• New physics at nuSTORM
• Comparing event generator predictions and ab-initio calculations of $\nu$-${}^{12}$C neutral current quasi-elastic scattering at 1 GeV
• Exploration of mass splitting and muon/tau mixing parameters for an eV-scale sterile neutrino with IceCube
• Sensitivity of Hyper-Kamiokande to sub-eV Sterile Neutrinos
• Search for active-sterile antineutrino mixing using neutral-current interactions with the NOvA experiment
• The Violation of Equivalence Principle and Four Neutrino Oscillations for Long Baseline Neutrinos
• Light Sterile Neutrinos in the Early Universe: Effects of Altered Dispersion Relations and a coupling to Axion-Like Dark Matter
• New sources of leptonic CP violation at the DUNE neutrino experiment