Publication: Active to Sterile Neutrino Mixing Limits from Neutral-Current Interactions in MINOS
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Date
2011
Published Version
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American Physical Society (APS)
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Citation
Adamson, P., D. J. Auty, D. S. Ayres, C. Backhouse, G. Barr, M. Bishai, A. Blake, et al. 2011. “Active to Sterile Neutrino Mixing Limits from Neutral-Current Interactions in MINOS.” Physical Review Letters 107 (1) (June). doi:10.1103/physrevlett.107.011802.
Research Data
Abstract
Results are reported from a search for active to sterile neutrino oscillations in the MINOS long-baseline experiment, based on the observation of neutral-current neutrino interactions, from an exposure to the NuMI neutrino beam of 7.07×10207.07×1020 protons on target. A total of 802 neutral-current event candidates is observed in the Far Detector, compared to an expected number of 754±28(stat.)±37(syst.)754±28(stat.)±37(syst.) for oscillations among three active flavors. The fraction fsfs of disappearing \numu that may transition to νsνs is found to be less than 22% at the 90% C.L.
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Keywords
neutrino: sterile, neutrino: oscillation, neutrino: mixing, neutrino: secondary beam, neutral current, far detector, MINOS, flavor: 3, neutrino: interaction, neutrino: energy spectrum, mass: hierarchy, Soudan, experimental results
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