Abstract
The OPERA experiment, exposed to the CERN to Gran Sasso ν μ beam, collected data from 2008 to 2012. Four oscillated ν τ Charged Current interaction candidates have been detected in appearance mode, which are consistent with ν μ → ν τ oscillations at the atmospheric Δm 2 within the “standard” three-neutrino framework. In this paper, the OPERA ν τ appearance results are used to derive limits on the mixing parameters of a massive sterile neutrino.
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The OPERA collaboration., Agafonova, N., Aleksandrov, A. et al. Limits on muon-neutrino to tau-neutrino oscillations induced by a sterile neutrino state obtained by OPERA at the CNGS beam. J. High Energ. Phys. 2015, 69 (2015). https://doi.org/10.1007/JHEP06(2015)069
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DOI: https://doi.org/10.1007/JHEP06(2015)069