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https://hdl.handle.net/2440/81189
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Type: | Journal article |
Title: | Measurement of atmospheric neutrino oscillations with IceCube |
Author: | Aartsen, M. Hill, G. |
Citation: | Physical Review Letters, 2013; 111(8):1-6 |
Publisher: | American Physical Soc |
Issue Date: | 2013 |
ISSN: | 0031-9007 1079-7114 |
Statement of Responsibility: | M. G. Aartsen ... G. C. Hill ... et al. (IceCube Collaboration) |
Abstract: | We present the first statistically significant detection of neutrino oscillations in the high-energy regime (>20 GeV) from an analysis of IceCube Neutrino Observatory data collected in 2010 and 2011. This measurement is made possible by the low-energy threshold of the DeepCore detector (~20 GeV) and benefits from the use of the IceCube detector as a veto against cosmic-ray-induced muon background. The oscillation signal was detected within a low-energy muon neutrino sample (20-100 GeV) extracted from data collected by DeepCore. A high-energy muon neutrino sample (100 GeV-10 TeV) was extracted from IceCube data to constrain systematic uncertainties. The disappearance of low-energy upward-going muon neutrinos was observed, and the nonoscillation hypothesis is rejected with more than 5σ significance. In a two-neutrino flavor formalism, our data are best described by the atmospheric neutrino oscillation parameters |Δm(32)(2)|=(2.3(-0.5)(+0.6))×10(-3) eV(2) and sin(2)(2θ(23))>0.93, and maximum mixing is favored. |
Keywords: | Atmospheric neutrinos Ice cubes Muon background Muon neutrino Neutrino oscillations Non-oscillations Oscillation signals Systematic uncertainties |
Rights: | © 2013 American Physical Society |
DOI: | 10.1103/PhysRevLett.111.081801 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1103/physrevlett.111.081801 |
Appears in Collections: | Aurora harvest 4 Chemistry and Physics publications |
Files in This Item:
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hdl_81189.pdf | Published version | 1.1 MB | Adobe PDF | View/Open |
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