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

dc.contributor.authorAbe, K.
dc.contributor.authorAkutsu, R.
dc.contributor.authorAli, A.
dc.contributor.authorAndreopoulos, C.
dc.contributor.authorAnthony, L.
dc.contributor.authorAntonova, M.
dc.contributor.authorAoki, S.
dc.contributor.authorAriga, A.
dc.contributor.authorAshida, Y.
dc.contributor.authorAwataguchi, Y.
dc.contributor.authorAzuma, Y.
dc.contributor.authorBan, S.
dc.contributor.authorBarbi, M.
dc.contributor.authorBarker, G.J.
dc.contributor.authorBarr, G.
dc.contributor.authorBarry, C.
dc.contributor.authorBatkiewicz-Kwasniak, M.
dc.contributor.authorBench, F.
dc.contributor.authorKarlen, Dean
dc.contributor.authoret al.
dc.description.abstractWe 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 ) × 10 20 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 sin 2 θ 24 for the sterile neutrino mass splitting Δ m 2 41 < 3 × 10 − 3     eV 2 / c 4 .en_US
dc.description.sponsorshipWe thank the J-PARC staff for superb accelerator performance. We thank the CERN NA61/SHINE Collaboration for providing valuable particle production data. We acknowledge the support of MEXT, Japan; NSERC (Grant No. SAPPJ-2014-00031), NRC and CFI, Canada; CEA and CNRS/IN2P3, France; DFG, Germany; INFN, Italy; National Science Centre (NCN) and Ministry of Science and Higher Education, Poland; RSF, RFBR, and MES, Russia; MINECO and ERDF funds, Spain; SNSF and SERI, Switzerland; STFC, UK; and DOE, USA. We also thank CERN for the UA1/ NOMAD magnet, DESY for the HERA-B magnet mover system, NII for SINET4, the WestGrid and SciNet consortia in Compute Canada, and GridPP in the United Kingdom. In addition, participation of individual researchers and institutions has been further supported by funds from ERC (FP7), “la Caixa” Foundation (ID 100010434, fellowship code LCF/BQ/IN17/11620050), the European Union’s Horizon 2020 Research and Innovation programme under the Marie Sklodowska-Curie grant agreement no. 713673 and H2020 Grant No. RISE-GA644294- JENNIFER 2020; JSPS, Japan; Royal Society, UK; the Alfred P. Sloan Foundation and the DOE Early Career program, USA.en_US
dc.identifier.citationAbe, K., Akutsu, R., Ali, A., Andreopoulos, C., Anthony, L., Karlen, D., … Zykova, A. (2019). Search for light sterile neutrinos with the T2K far detector Super-Kamiokande at a baseline of 295 km. Physical Review D, 99(7), 1-10.
dc.publisherPhysical Review Den_US
dc.titleSearch for light sterile neutrinos with the T2K far detector Super-Kamiokande at a baseline of 295 kmen_US


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