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Determining neutrino oscillation parameters from atmospheric muon neutrino disappearance with three years of IceCube DeepCore data
Physical Review D, v 91(7), p072004
01 Jan 2015
Abstract
We present a measurement of neutrino oscillations via atmospheric muon neutrino disappearance with three years of data of the completed IceCube neutrino detector. DeepCore a region of denser IceCube instrumentation enables the detection and reconstruction of atmospheric muon neutrinos between 10 and 100 GeV where a strong disappearance signal is expected. The IceCube detector volume surrounding DeepCore is used as a veto region to suppress the atmospheric muon background. Neutrino events are selected where the detected Cherenkov photons of the secondary particles minimally scatter and the neutrino energy and arrival direction are reconstructed. Both variables are used to obtain the neutrino oscillation parameters from the data with the best fit given by ?m232=2.72+0.19-0.20×10-3??eV2 and sin2?23=0.53+0.09-0.12 (normal mass ordering assumed). The results are compatible and comparable in precision to those of dedicated oscillation experiments.
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Details
- Title
- Determining neutrino oscillation parameters from atmospheric muon neutrino disappearance with three years of IceCube DeepCore data
- Creators
- IceCube CollaborationBecker K. H
- Publication Details
- Physical Review D, v 91(7), p072004
- Publisher
- Cold Spring Harbor Press
- Grant note
- 200020_153508 / Swiss National Science Foundation (snsf________::SNSF)
- Resource Type
- Other
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000352257500002
- Scopus ID
- 2-s2.0-84929105091
- Other Identifier
- 991019169100704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics
- Physics, Particles & Fields