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Searches for Sterile Neutrinos with the IceCube Detector
Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia..
Tech Univ Munich, Dept Phys, D-85748 Garching, Germany..
DESY, D-15735 Zeuthen, Germany..
Univ Canterbury, Dept Phys & Astron, Private Bag 4800, Christchurch, New Zealand..
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2016 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 117, no 7, 071801Article in journal (Refereed) Published
Abstract [en]

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).

Place, publisher, year, edition, pages
2016. Vol. 117, no 7, 071801
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-303280DOI: 10.1103/PhysRevLett.117.071801ISI: 000381477200004PubMedID: 27563950OAI: oai:DiVA.org:uu-303280DiVA: diva2:971697
Funder
Swedish Research CouncilSwedish Polar Research SecretariatSwedish National Infrastructure for Computing (SNIC)Knut and Alice Wallenberg FoundationKnut and Alice Wallenberg Foundation
Available from: 2016-09-19 Created: 2016-09-15 Last updated: 2016-09-19Bibliographically approved

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Boersma, David J.Botner, OlgaBurgman, AlexanderEuler, SebastianHallgren, AllanTaavola, HenricUnger, Lisa
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