Searches for Sterile Neutrinos with the IceCube Detector
Physical review letters 117(7), 071801(2016). doi:10.1103/PhysRevLett.117.071801 : 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 s...
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Format: | Report |
Language: | English |
Published: |
Deutsches Elektronen-Synchrotron, DESY, Hamburg
2016
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Subjects: | |
Online Access: | https://dx.doi.org/10.3204/pubdb-2016-06462 http://bib-pubdb1.desy.de/record/316268 |
Summary: | Physical review letters 117(7), 071801(2016). doi:10.1103/PhysRevLett.117.071801 : 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$_μ$ or $\bar{ν}_μ$ 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$^{2}$2θ$_{24}$≤0.02 at Δm$^2$∼0.3 eV$^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$_{e4}$|$^2$. : Published by APS, College Park, Md. |
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