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  • 1902.06529v1

    Rights statement: © 2019 American Physical Society

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

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Article number071103
<mark>Journal publication date</mark>30/04/2019
<mark>Journal</mark>Physical Review D
Issue number7
Volume99
Publication statusPublished
Original languageEnglish

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^2_{41}

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© 2019 American Physical Society