Search for Sterile Neutrinos in MINOS and MINOS plus Using a Two-Detector Fit

Blake, A. and Nowak, J. A. and MINOS/MINOS+ Collaboration (2019) Search for Sterile Neutrinos in MINOS and MINOS plus Using a Two-Detector Fit. Physical review letters, 122 (9). ISSN 1079-7114

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A search for mixing between active neutrinos and light sterile neutrinos has been performed by looking for muon neutrino disappearance in two detectors at baselines of 1.04 km and 735 km, using a combined MINOS and MINOS+ exposure of $16.36\times10^{20}$ protons-on-target. A simultaneous fit to the charged-current muon neutrino and neutral-current neutrino energy spectra in the two detectors yields no evidence for sterile neutrino mixing using a 3+1 model. The most stringent limit to date is set on the mixing parameter $\sin^2\theta_{24}$ for most values of the sterile neutrino mass-splitting $\Delta m^2_{41} > 10^{-4}$ eV$^2$.

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Physical review letters
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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.
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11 Mar 2019 14:30
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17 Sep 2023 02:09