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Measurement of Atmospheric Tau Neutrino Appearance with IceCube DeepCore
- Source :
- Phys. Rev. D 99, 032007 (2019)
- Publication Year :
- 2019
-
Abstract
- We present a measurement of atmospheric tau neutrino appearance from oscillations with three years of data from the DeepCore sub-array of the IceCube Neutrino Observatory. This analysis uses atmospheric neutrinos from the full sky with reconstructed energies between 5.6 GeV and 56 GeV to search for a statistical excess of cascade-like neutrino events which are the signature of nutau interactions. For CC+NC (CC-only) interactions, we measure the tau neutrino normalization to be 0.73 +0.30 -0.24 (0.57 +0.36 -0.30) and exclude the absence of tau neutrino oscillations at a significance of 3.2 sigma (2.0 sigma) These results are consistent with, and of similar precision to, a confirmatory IceCube analysis also presented, as well as measurements performed by other experiments.
- Subjects :
- High Energy Physics - Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 99, 032007 (2019)
- Publication Type :
- Report
- Accession number :
- edsarx.1901.05366
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.99.032007