Searches for Sterile Neutrinos with the IceCube Detector
Name
PhysRevLett.117.071801.pdf
Size
2.7 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Aartsen, M. G.
Abraham, K.
Ackermann, M.
Adams, J.
Aguilar, J. A.
Ahlers, M.
Ahrens, M.
Altmann, D.
Andeen, K.
Anderson, T.
Date Issued
August 2016
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aartsen, M. G. et al. “Searches for Sterile Neutrinos with the IceCube Detector.” Physical Review Letters 117.7 (2016): n. pag. © 2016 American Physical Society
Version
Final published version
Abstract
The IceCube neutrino telescope at the South Pole has measured the atmospheric muon neutrino spectrum as a function of zenith angle and energy in the approximate 320 GeV to 20 TeV range, to search for the oscillation signatures of light sterile neutrinos. No evidence for anomalous ν[subscript μ] or [bar over v][subscript μ] disappearance is observed in either of two independently developed analyses, each using one year of atmospheric neutrino data. New exclusion limits are placed on the parameter space of the 3+1 model, in which muon antineutrinos experience a strong Mikheyev-Smirnov-Wolfenstein-resonant oscillation. The exclusion limits extend to sin[superscript 2]2θ[subscript 24] ≤ 0.02 at Δm[superscript 2]∼0.3 eV[superscript 2] at the 90% confidence level. The allowed region from global analysis of appearance experiments, including LSND and MiniBooNE, is excluded at approximately the 99% confidence level for the global best-fit value of |U[subscript e4}]|[superscript 2].
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.117.071801
