eV-Scale Sterile Neutrino Search Using Eight Years of Atmospheric Muon Neutrino Data from the IceCube Neutrino Observatory
M. G. Aartsen (Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand); R. Abbasi (Department of Physics, Loyola University Chicago, Chicago, Illinois 60660, USA); M. Ackermann (DESY, D-15738 Zeuthen, Germany); J. Adams (Department of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand); J. A. Aguilar (Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium); et al - Show all 377 authors
The results of a sterile neutrino search using eight years of data from the IceCube Neutrino Observatory are presented. A total of 305 735 muon neutrino events are analyzed in reconstructed energy-zenith space to test for signatures of a matter-enhanced oscillation that would occur given a sterile neutrino state with a mass-squared differences between 0.01 and . The best-fit point is found to be at and , which is consistent with the no sterile neutrino hypothesis with a value of 8.0%.