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

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 is 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 sin2θ24 for the sterile neutrino mass splitting Δm412<3×10-3 eV2/c4.

Original languageEnglish (US)
Article number071103
JournalPhysical Review D
Volume99
Issue number7
DOIs
StatePublished - Apr 1 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 authors. Published by the American Physical Society.

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