A search for flavor-changing non-standard neutrino interactions by MINOS
MINOS Collaboration: P. Adamson, G. Barr, M. Bishai, A. Blake, G. J., Bock, D. Bogert, S. V. Cao, D. Cherdack, S. Childress, J. A. B. Coelho, L., Corwin, D. Cronin-Hennessy, J. K. de Jong, A. V. Devan, N. E. Devenish, M. V., Diwan, C. O. Escobar, J. J. Evans, E. Falk
TL;DR
This paper uses MINOS data to search for non-standard neutrino interactions, finding no evidence for deviations from standard models and setting new constraints on flavor-changing NSI parameters.
Contribution
It provides the first combined analysis of beam neutrino and antineutrino data to constrain flavor-changing NSI parameters.
Findings
No evidence for deviations from standard neutrino mixing.
Constraints on NSI parameter $oldsymbol{ ext{-0.20 < \varepsilon_{\mu au} < 0.07}}$ at 90% confidence level.
Improved bounds on flavor-changing non-standard neutrino interactions.
Abstract
We report new constraints on flavor-changing non-standard neutrino interactions (NSI) using data from the MINOS experiment. We analyzed a combined set of beam neutrino and antineutrino data, and found no evidence for deviations from standard neutrino mixing. The observed energy spectra constrain the NSI parameter to the range -0.20 < \varepsilon_{\mu\tau} < 0.07\;\text{(90% C.L.)}
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