PT Journal
AU T2K Collaboration (Abe, Kea
   Antonova, M
   Cervera-Villanueva, A
   Fernandez, P
   Izmaylov, A
   Novella, P
TI Search for light sterile neutrinos with the T2K far detector Super-Kamiokande at a baseline of 295 km
SO Physical Review D
JI Phys. Rev. D
PY 2019
BP 071103
EP 10pp
VL 99
IS 7
DI 10.1103/PhysRevD.99.071103
LA English
AB 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) x 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)theta(24 )for the sterile neutrino mass splitting Delta m(41)(2 )< 3 x 10(-3 )eV(2)/c(4).
ER