The OPERA experiment has conclusively observed the appearance of tau neutrinos in the muon neutrino CNGS beam. High purity samples of $\nu_e$, $\nu_\mu$ and $\nu_\tau$ charged current neutrino interactions, as well as neutral current interactions were isolated.
Recent results obtained using the full dataset to test the three-flavor neutrino oscillation model are discussed. Constraints on the existence of a light sterile neutrino, derived using for the first time tau and electron neutrino appearance channels, are also presented. A significant fraction of the sterile neutrino parameter space allowed by LSND and MiniBooNE experiments is excluded at 90$\%$ C.L. In particular, the best-fit oscillation parameter values obtained by MiniBooNE are excluded at 3.3 $\sigma$ significance.
Volume 364 -
European Physical Society Conference on High Energy Physics (EPS-HEP2019) -
Neutrino Physics
The legacy of the OPERA experiment on neutrino oscillations
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Pre-published on:
June 10, 2020
Published on:
November 12, 2020
Abstract
DOI: https://doi.org/10.22323/1.364.0388
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.