Abstract
The OPERA experiment was designed to study oscillations in the appearance mode in the CERN to Gran Sasso Neutrino beam (CNGS). In this Letter, we report the final analysis of the full data sample collected between 2008 and 2012, corresponding to protons on target. Selection criteria looser than in previous analyses have produced ten candidate events, thus reducing the statistical uncertainty in the measurement of the oscillation parameters and of properties. A multivariate approach for event identification has been applied to the candidate events and the discovery of appearance is confirmed with an improved significance level of . has been measured, in appearance mode, with an accuracy of 20%. The measurement of the charged-current cross section, for the first time with a negligible contamination from , and the first direct evidence for the lepton number are also reported.
- Received 16 April 2018
DOI:https://doi.org/10.1103/PhysRevLett.120.211801
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society
Physics Subject Headings (PhySH)
Erratum
Erratum: Final Results of the OPERA Experiment on Appearance in the CNGS Neutrino Beam [Phys. Rev. Lett. 120, 211801 (2018)]
N. Agafonova et al. and OPERA Collaboration
Phys. Rev. Lett. 121, 139901 (2018)
Synopsis
OPERA’s Final Stamp on Neutrino Oscillations
Published 22 May 2018
The final analysis of data collected by the OPERA experiment improves the precision of measurements of neutrinos oscillating between muon and tau flavors.
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