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

The T2K Collaboration

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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)×1020 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 sin2 θ24 for the sterile neutrino mass splitting ∆m241 ≺ 3 × 103 eV2/c4.

Original languageEnglish
JournalUnknown Journal
Publication statusPublished - Feb 18 2019

ASJC Scopus subject areas

  • General

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