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Searches for Sterile Neutrinos with the IceCube Detector
Journal article   Open access   Peer reviewed

Searches for Sterile Neutrinos with the IceCube Detector

Maryon Ahrens, Christian Bohm, Jonathan P. Dumm, Chad Finley, Samuel Flis, Klas Hultqvist, Christian Walck, Martin Wolf, Marcel Zoll and IceCube Collaboration
Physical review letters, v 117(7), pp 071801-071801
2016
DOI: https://doi.org/10.1103/PhysRevLett.117.071801
PMID: 27563950
url
https://doi.org/10.1103/physrevlett.117.071801View
Accepted (AM)Open Access (Publisher-Specific),  Open
url
https://doi.org/10.1103/PhysRevLett.117.071801View
Published, Version of Record (VoR) Open

Abstract

Fysik Naturvetenskap Natural Sciences Physical Sciences
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 nu(mu) or (nu) over bar (mu) 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)2 theta(24) <= 0.02 at Delta m(2) similar to 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 vertical bar U-e4 vertical bar(2).

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Physics, Multidisciplinary
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